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If one of the visible charts is selected, deselect it. Explore your options. By definition, the map is sorted by key values. The application must prepare parameters and pass them to the function. The mouse is supposed to have three buttons and a wheel, but the option for a two-button mouse is provided. If it is checked, the "Append" command imitates an oscilloscope sort of. If the chart has only one data point, it will always render as a circle. I was really impressed with Christine's work! We do it by drawing the circles around the data points. The printout is forever.

Select the chart, the start and end X coordinates, and truncate the chart. Paste as plain text instead. The chart container fills this multimap with tuples for the data point's info for visible points of the charts only. The name string consists of a short line to show color, dash style, and pen width of the chart, and a chart name. This algorithm starts from the end of the history vector and returns when it found the zoomY. However, in the demo, I decided to allow the change of the colors only on an empty container to make it easy to set the right chart colors later when you already know the container colors. The control renders a minimum info by default, but provides an access to the lot of data. Tweets by mikasounds.

These operations could also be performed with the interface member functions of the container. Remember, when the origin is out of the client rectangle, we just place the axis along the left or right or top or bottom boundaries of the rectangle. Alas, I tried. VS Help: "The work area is the portion of the screen not obscured by the system taskbar or by the application desktop toolbars". Obviously, the parent is the chart container. The value of precision is the number of significant digits to show when the numbers are being converted to strings. It will automatically select an appropriate lib vesion when you switch between configurations. Again, the readers' feedback and my own experience in using ChartCtrl prompted me to add some new features to the control.

Draw the children into the main bitmap, but carefully position the children layout rectangles on the main bitmap. The drawing itself is straightforward. The data vector is sorted by X, so the distance will always decrease when we are moving to origPnt. The code should look like:. This is a reason we call the std::sort on the data vector outright. The default constructor sets the default colors white background, black axes and border, gray dot grid, light yellow background for data and name labels, etc. Remember, when the origin is out of the client rectangle, we just place the axis along the left or right or top or bottom boundaries of the rectangle. The data series is a vector of points with coordinates double X , double Y. It means that all the work that the Operating System and the MFC Framework are doing when the owner is moving, resizing, or is under the other windows, you have to do by yourself. The charts can display very different values along Y-axis.

Readers' feedback and my own experience in using ChartCtrl prompted me to add some new features to the control. Instead, we will print the chart info below the container window. Click 'Register' to create your Nedbank ID. It means that the first data point in the time series will be PointD 0. To distinguish between the actual data points and the spline interpolation pixels, we have somehow to mark the actual data points. We must have the correct transform matrix every time we are going to draw the charts. Therefore, CreateEx is called on zero x, y, width, and height. The chart control code consists of seven headers and six source files add stdafx.

Our service is temporarily unavailable. The flag dataChange tells the data view that the chart's data vector is changed and need a special treatment. Note: Sometimes you might get circles around the data points that are not visible on the screen because the printed page size is greater than the container client window. Again, the image of this interval in the data space is a constant for the lifetime of the point of request. The parameters startX , endX might cover the entire container's X-extension or only part of it after zooming in or panning. If the intersection of the working area and the newly minted data view rectangle were less than this rectangle, I would move the rectangle to the left and adjust its vertical position. Token Countdowns Start a Countdown! They must have the same size; the vector for X must be sorted; the Y values should be arranged in order corresponding to the sorted Xs.

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The visual layout of the demo app is tuned to the screen resolution 96 DPI logical pixels, isotropic. There is heavy use of STL containers: vectors, maps, and multimaps. You have to include two files, ChartDef. I stay up on mfc and chatting on msn and then I can't deal with the day:naughty:. This algorithm is custom-made with the custom predicate:. Quantities will come later, when we want to know how big the overshoot is, or at what X the minimum occurs. Unzip it, open " Index. The code should look like:. You call the data view for the selected chart from the container's popup menu or programmatically.

I got some input from online tutorials for printing from dialog-based apps. Actually, you need to have more: the Gdiplus::DrawCurve routine draws an ugly curve if it does not receive enough data points. It makes possible to start anew with the same chart visuals. Enter a file name or select the file to overwrite, and click the dialog's "Save" button. To distinguish between the actual data points and the spline interpolation pixels, we have somehow to mark the actual data points. It might happen much, much later in the development or long later, during a software upgrade. For other operations, the container has a built-in popup menu and the handlers for mouse clicks, mouse wheel, and keyboard arrow keys. The user is responsible for the last two vectors.

For example, we can have one chart for altitude Y vs. The data points in the chart's data vector are in the chart's data space. The class is derived from CWnd. We cannot work in the client space because the conversion from the double s of the data space to the float s in the client space could result in loss of precision. However, in the demo, I decided to allow the change of the colors only on an empty container to make it easy to set the right chart colors later when you already know the container colors. Posted June 6, You can save the chart's data vector. To distinguish between the actual data points and the spline interpolation pixels, we have somehow to mark the actual data points.

Let us zoom in the container to the extent For example, there is no and will be no axis tiks with labels, but if you cannot live without them, you have access to the container's X- and Y-extensions. Suzy, I have the same problem Sometimes it is not desirable to clutter the picture with these circles. Keep in mind that only the first search operates on the entire data vector. It is not always convenient to show chart data points as naked numbers. We suppose to analyze related sets of data. It means you have to include ChartDef. The user selects the X-coordinate, and the container should show the values for all data points closest to the point of request. As a rule, we place the label to the right of the request point if this point is in the left half of the container window, and to the left, if the point is to the right half.

Sometimes it is not desirable to clutter the picture with these circles. Blue Sky Posted June 9, The better way to do it is to use the layered window. Yet another way to add the reference to the lib to the project is the use of VS macros. When we are drawing charts in the container window, we are drawing in the container's client space. Only two header files, ChartDef. The container name is used only to print charts. The name in the XML file will not change. It formats the value string as a number with the given precision. Try to use the demo to see the results of your changes.

The default constructor sets the default colors white background, black axes and border, gray dot grid, light yellow background for data and name labels, etc. Recommended Posts. What are the benefits? The charts are known outside the container by their names. We already have Gdipus::Matrix for float s, so there is the transform matrix class for double s ChartDef. We can expect the X-ranges of related data sets to overlap, albeit not completely. The printout is forever. In the appropriate configuration e. It is not always convenient to show chart data points as naked numbers. You seem to have been inactive for a while.

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More info about the formatting functions I will provide later. To draw without flicker, we use double-buffered drawing: we draw into memory first, and transfer the result onto a display's surface after that. How do I register? This task is performed by the function:. I think that the best way to describe the inner working and interaction of the chart control classes and points of interest is to consider the tasks the chart control should perform. To save a group of charts, hide all the charts you are not going to save use the popup menu to hide the charts. As I told you before, this was a really user friendly chat room! But the reader Alberl was wery insistent asking for the zoom along both axes, so I wilt.

Again, the readers' feedback and my own experience in using ChartCtrl prompted me to add some new features to the control. The total width should include additional spacing. Fmbm 16 Posted June 8, You call the data view for the selected chart from the container's popup menu or programmatically. Posted June 8, It might take many rows to display the entire table, so I choose a page structure to display one page at a time against a choice of scrolling. But the reader Alberl was wery insistent asking for the zoom along both axes, so I wilt. When you select the file, the chart names from the file are displayed in the multi-selection list box.

How to decide when to draw these circles? Second, on the screen, to get to details, we always can move charts, zoom in, hide the data and name labels, etc. You seem to have been inactive for a while. Otherwise, we will print all visible charts. If the container would update its X-extent immediately, the picture you were so busy analyzing will go down the drain. This algorithm is custom-made with the custom predicate:. Ohhh, this is so very cool! The chart container is a control in the main application dialog. The container's client rectangle comprises the client, or the screen space. For the translation in the client space, we need to know the axes origin.

Fmbm 8 posts. If you have some special needs, you can set the X-range with the function:. The container will adjust its X and Y extensions according to acquired chart data. This vector is a data member of the chart class. For the time series overload you should provide the start X coordinate and X step. You also can play with the tension to beautify your curve. I choose the type double for the internal representation of the chart data because it allows the best combination of range and precision. Later the file can be loaded into a chart container.

Posted June 3, We will call X 0 a request point. Fmbm 16 Posted June 5, Draw the children into the main bitmap, but carefully position the children layout rectangles on the main bitmap. The default name is "X". I refer you to the ChartDataView. To get the pointer, we call the std::vector::data function:. Take them, draw tiks and names in some transparent window, and overlay it over the container. Secure, free online account management - putting the control of your vehicle account into your hands. Sign In Sign Up.

The number of data points per pixel changes when the user changes the container's X-extent. To save the screen's real estate, I squeeze into one page as many rows and columns as possible. Of course, the reference to the library file ChartCtrlLib. No window is attached to the clone: we do not need it. So we have to transform the data space into a client space working with double values first, and cast the results to float type next. What is the problem? On the first iteration that yields increased distance, the predicate will return true. Well, we have to be cautious, always remember about lost precision. To get the chart's X- and Y-extents, we need to find minimum and maximum values of the X and Y coordinates. The data space of the container is a union of the data spaces of all charts in the container.

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We reserved it to draw a chart as a set of disconnected data points. You have to make the definition of this class visible at every point of your application where you are calling any container member function that returns or accepts a parameter of type PointD. The X range might be set automatically to show all charts in their full extent. Before and after cloning we send notifications to the container's parent. We search separately for the longest chart name, the longest X value, the longest Y name, and the longest Y value strings using the function Gdiplus::MeasureString. Unzip it, open " Index. Please look at ChartContainer. Enter a file name or select the file to overwrite, and click the dialog's "Save" button.

To position the slider's thumb exactly where you want, left click on the slider to set the focus to it, and use arrow keys to move the thumb. The map keys are chart IDs, the values are pointers to the charts. Well, we have to be cautious, always remember about lost precision. Change chart attributes. Sometimes it is not desirable to draw these circles. Before and after cloning the function sends notification the the container's parent. No window is attached to the clone: we do not need it. For the new click in this new X-extent, the new interval is six pixels again. Still, what can be passed as a typename? The suffix is a chart's ID.

They must have the same size; the vector for X must be sorted; the Y values should be arranged in order corresponding to the sorted Xs. Obviously, changes in chart attributes such as the name of Y-values, the Y-precision, and the Y-formatting function might change the data view layout. Why do we want to see a set of data points as a curve? Again, the readers' feedback and my own experience in using ChartCtrl prompted me to add some new features to the control. The application could set the formatting functions calling the container's "Set" functions:. If the data view is present, and the chart name, formatting function, or other chart attributes but not the data vector are changed, we have to pass to the function the chart Idx only. It will not update container's X - and Y -extensions of the container. Join the conversation You can post now and register later. We will discuss it later. Sometimes it is not desirable to clutter the picture with these circles.

You can select the chart and restore it to the initial state using the button "Undo". What will happen if this operator is not defined? It means that the MeasureString should be applied to each string, not to the string with the greatest length. This is an interactive control which assumes the user is sitting before a PC display. The chart data vector could be replaced with empty vector. The initial X-extent should be, at least, the union of X-ranges for all charts. If you have an account, sign in now to post with your account. Therefore, each chart can have its own Y-axis name, Y precision, and the Y formatting function. We declare offsYX as double because X- and Y-extensions are double s, but the calculations are in the client space.

Only 75 emoji are allowed. It's not copyright protected. Again, we use the template definition for the search for Y-coordinates, and a partial specialization for the search for X. The Y-multiplier slider sets the order of magnitude of the Y-coordinates of the data series. Zoom enough along the X-axis, and read Y-values point by point all way along. The map element's key is the chart ID, the value is the selected data point. The chart container fills this multimap with tuples for the data point's info for visible points of the charts only. This vector is a data member of the chart class. Enter a file name or select the file to overwrite, and click the dialog's "Save" button. The application should decide how and when to notify the user about the X-extent changes if these changes are hidden by zoom or pan modes.

A position of this drawing space in the client rectangle depends on the position of the X-axis. I have very lightweight server space. Daniella92 10 Posted June 4, The only bummer here is that now that it's all kicking off I will be on holiday for a few days and hardly able to log in. We declare offsYX as double because X- and Y-extensions are double s, but the calculations are in the client space. With the size defined, I try to place the data view rectangle 50 pixels to the right and above the application's main window, which is the parent of the container. Usually 30 - 40 points for pixels are enough. Given the map, you can erase the unwanted charts from the map, and change the colors of the charts you decided to load into the container.

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This algorithm starts from the end of the history vector and returns when it found the zoomY. The suffix is a chart's ID. What does "closest" mean? In the appropriate configuration e. These additions forced further changes in many container functions to accommodate the new functionality. I love the chatroom, I love it! Blue Sky Posted June 9, If it is checked, the "Append" command imitates an oscilloscope sort of. The tabs of the control are shown below. Use the list box below and the color button to change the chart colors, if it is needed, and click "Apply Load".

The X-axis name edit control allows changing the X-axis name. Only models and CharlesBot helpers have access to this command. The charts are known outside the container by their names. So to not obscure chart curves, we will not show the data and names windows. To understand the problem, let us consider the situation when you want to analyze some part of the chart's curve. Thanks Christine! Clear editor. The data view window is created as a popup window to allow some leeway in positioning it on the screen. It means that the MeasureString should be applied to each string, not to the string with the greatest length.

The data point is an instantiation of the class template:. If the user decides to print only one chart, we will print only one selected chart. We begin with the container's X- and Y-extensions that are either calculated by the container or set by the application. The multimap of the selected points is also constant. I choose the type double for the internal representation of the chart data because it allows the best combination of range and precision. So I used the algorithm:. The solution is to use the code from the childs bitmaps. Why do we pass five strings instead of one? The predicate takes the point's coordinate here it is pntT. From this point, typing!

The parameter dist defines the interval in the data space where the "closest" points might be. The screen snapshots above show this chart control in a dialog-based demo application. You are never supposed to address all other classes directly: use CCharContainer public member functions instead. For this demo, you cannot select one or several charts to append; all charts in the container will be appended. The mapping into the client space consists of translations and scaling. Reference source file. This task is performed by the function:. This command can be used to select an unlimited number of winners. Jeff Archer asked to add the least squares curve fitting to the library. It is the default tab.

X , and always increase after that. Followers 0. The default value of three means that there would be three significant digits shown in any number: Suppose we zoomed in the container, and now only 10 data points are visible in the client rectangle. Blue Sky Posted June 9, Any chart or group of charts from the file can be loaded back in this container or in any other container. All we know from outset is the name of the XML file. Because we are using the direct matrix in every drawing procedure, we have to operate on the clone of it. Copy the library ChartCtrlLibD.

There are various optional flags that allow you to modify how the game works. Please ensure you have your cell phone on hand so that you can Accept your registration. But the reader Alberl was wery insistent asking for the zoom along both axes, so I wilt. First of all, it processes the pathName. Just select and remove delete the chart. You seem to have been inactive for a while. The charts are known outside the container by their names. Keep me logged in Logout, I'm finished. It's so cool being able to chat to people like that, and faster than threads

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It just calculates:. Update your account payment and insurance details. To position the slider's thumb exactly where you want, left click on the slider to set the focus to it, and use arrow keys to move the thumb. If the user decides to print only one chart, we will print only one selected chart. The container will adjust its X and Y extensions according to acquired chart data. Of course, we will lose precision, but this does not matter: the float coordinates will be rounded to pixels eventually. The list box control is shown for info only. Note that the selected point must be in the client rectangle, not in the epsX interval. What does "closest" mean? The container cannot load XML file saved in the version 1.

Tab 3 is the "Append Chart" tab. The container uses them to calculate its horizontal and vertical scales. Because we have set the page unit to UnitDocument , the font size is the same, no matter what the printer resolution is. Well, we have to be cautious, always remember about lost precision. If it is checked, it will lock the new X-extension to truncate all other charts to the same X-extension. In the sorted by X data vector, the min X is the X-coordinate of the first element, and the max X is the last X. So we need to have a clutter-free picture without numbers, text labels, etc. The default formatting functions just convert the numbers to strings with given precision. The code should look like:. Clone container.

The chart visuals: the tension line smoothness , the line color, dash style, and width of each chart, might be set individually. At any given moment, the boundaries of the used container data space are stored in CChartContainer data members:. I fell asleep in meetings at work because of this chat room staying up really late at night. Christine 6 posts. If you do not want to click mouse button or depress key, it is OK: you can programmatically control the charts from your main application. The mapping into the client space consists of translations and scaling. The checkbox "Keep Range X" can be activated only after the first successful truncation. The function takes a number's value and precision and returns a string. If the chart is not visible, nothing will be saved. The default name is "X".

In addition, in VS Microsoft have implemented some templates, including tuples, using faux variadics. Christine Posted June 4, We're fetching your data, please be patient. The charts' data points are in the data space. You also can play with the tension to beautify your curve. It also has its own precision for the Y-values, the own Y-axis name, and the own formatting function for the Y-values. Please ensure you have your cell phone on hand so that you can Accept your registration. LadyGodiva 12 Posted June 4,

In theory, the container's data space might be completely or partially out of the range of the type float. The multimap of the selected points is also constant. Usually it means the same number of data points and the same X-extension. Same here. You can see every data point after an appropriate zooming and panning. If you select some data points in the table, you will see the exact positions of these points on the chart's curve. Some features I agreed to are added to the control:. Link to post Share on other sites. I was really impressed with Christine's work!

This decision is based entirely on aesthetic considerations: the chart curve with circles looks not too cluttered at this distance. Because there is only one X-axis for all charts, for the X-axis there might be only one common name, one precision value, and one formatting function. A cardinal spline passes smoothly through each point in the array Mika4Life13 11 Posted June 3, First, we clone the container. We will call X 0 a request point. First, in what function should we calculate the transform matrix? We will discuss it later. If there is not enough space to the left of the request point, we will place the left border of the label close to the left border of the client rectangle.

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It allows us to modify the Y- scale of the given chart to change the vertical size of the chart curve without modifying the chart's data space. The charts can display very different values along Y-axis. You do it separately and you can undo them separately. The X-axis name edit control allows changing the X-axis name. I think so. Please help us to improve your experience by sending an error report. First, the XML file might keep several charts, but we might not want to load all of them. Covid Debt Assistance We may be far apart, but we're in this together. For the new click in this new X-extent, the new interval is six pixels again. If the minimal distance between the adjacent data points is greater or equal to 6.

The interesting points there are calculation of the view's location, creation of the controls in the data view, and communication between the data view and the container. It is the only big class exported by the chart control library. Append charts. What is MFC online account management service? All functionality of the data view is implemented in the class CChartDataView. To understand the problem, let us consider the situation when you want to analyze some part of the chart's curve. The "Clone" button copies the container in the new popup window with the resizable border. You can also export the chart's data series as STL vectors. Now enters the vertical zoom.

They must have the same size; the vector for X must be sorted; the Y values should be arranged in order corresponding to the sorted Xs. We might use the entire container data space or only part of it think about zooming and panning. To have a beautiful curve covering all X-extent, we have to extend the data point set to the nearest left and right data points outside or at the limits of the X range. To understand the problem, let us consider the situation when you want to analyze some part of the chart's curve. First, we clone the container. But first, we have to calculate the text rectangle that envelops all strings to be displayed. If the container would update its X-extent immediately, the picture you were so busy analyzing will go down the drain. Keep me logged in Logout, I'm finished. Assume we have the X-extension of the data space If the chart is visible and the selected data point is in the client rectangle, the function calls GetSelValString for this chart and adds the result to mapLabs.

Any chart or group of charts from the file can be loaded back in this container or in any other container. Mainly, it is used as storage for the chart's data series and attributes. However, the curve definitely exists outside of these points. The short line before the info string has the same color, dash style, and pen width as the chart has. I stay up on mfc and chatting on msn and then I can't deal with the day:naughty:. To have a beautiful curve covering all X-extent, we have to extend the data point set to the nearest left and right data points outside or at the limits of the X range. The names with more than 18 characters will be truncated. It means that the MeasureString should be applied to each string, not to the string with the greatest length. Your application can use the version access functions to do the same. Finally, the function looks at the container charts to pass the chart names to the serializer.

The chart ID cannot be a negative value. The container precision is the precision of X values. The only bummer here is that now that it's all kicking off I will be on holiday for a few days and hardly able to log in. We will call these points the selected points. We plan to add some of the common smilies from MFC and if you have any other requests or questions you can post them here. Second, the Invert function calculates the data members of the inverted matrix. As a price, I accepted the task to remember to draw both in the container client area and in the child client area in the same time, and to refresh both windows when appropriate. We have chosen to draw circles if the minimal distance between adjacent data points is greater than or equal to six pixels. For example, if the greatest value of the charts maxX is 10, but you have passed as a parameter maxExtX, the max extension X will be set to Given the map, you can erase the unwanted charts from the map, and change the colors of the charts you decided to load into the container.

Ohhh, this is so very cool! The data line is going through the user selected X-coordinate, X 0. You will see it first when you start the demo. Please help us to improve your experience by sending an error report. Twitter Follow a Twitter Account! The data points define the data space. The red horizontal line marking this boundary will be displayed. If you are loading charts into an already populated container, and the container is in tracking mode, you have to update the data and name labels. You can post now and register later. There is a slide to set Y-precision.

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Model vs. We may be far apart, but we're in this together. X , might decrease on the move to the first point after origPnt. In drawing functions for the printing headers and chart info, we use the points unit to set the font size. You can select the chart and restore it to the initial state using the button "Undo". As a price, I accepted the task to remember to draw both in the container client area and in the child client area in the same time, and to refresh both windows when appropriate. Currently the chat doesn't work with your MFC login information, so if you didn't register for the chat this past weekend, you'll have to do so before you can log in to the chat. The mapping into the client space consists of translations and scaling. To make measurements and calculations with the printout possible, we will include the Y-scale value in the chart info, and always print the X-axis labels.

After change of the selection in the data view, the data view calls the container's function:. Christine Posted June 4, There is a possibility of programmaticaly equalize the set of local vertical scales. The tabs of the control are shown below. We see the charts in the container widow, and we want to know exact values of the charts' data points at the selected value X 0 of the X-axis. You select the chart from the list box and, using tab controls, set the names of chart and its Y-values, Y-precision, and visuals: color, dash style, the pen width, and tension. Finally, 50 ms after the sizing ends, the timer procedure redraws the labels on the screen. The visual layout of the demo app is tuned to the screen resolution 96 DPI logical pixels, isotropic.

Unzip it, open " Index. If the name is already assigner to the other chart, the container will append the supplied name with the suffix that is the chartIdx. You can also print the chart data tables from the data view window. Since the version 1. The member functions of the chart container to set colors are in the file ChartContainer. Again, add the semicolon if needed. The second snapshot also features a vertical data line and the chart data points nearest to it. Usually we delegate to the container the calculation of the container data space, but if needed, we can set the boundaries of the container data space from outside the container, using the functions:. There is the result.

There is a slide to set Y-precision. Play around! This function updates the data label window if it exists, redraws the chart names label again, if it is visible , and updates the data view. The same is true for the name of X-values and X-formatting function, and changes of the chart's data vector e. Insert image from URL. To make measurements and calculations with the printout possible, we will include the Y-scale value in the chart info, and always print the X-axis labels. Later the file can be loaded into a chart container. The algorithm is used by the function:. This decision is based entirely on aesthetic considerations: the chart curve with circles looks not too cluttered at this distance.

You have to make the definition of this class visible at every point of your application where you are calling any container member function that returns or accepts a parameter of type PointD. Obviously, to map back from the screen to the data space, we have to invert the transform matrix that was used to transform the data space into the client space. We are using the defaults if there is no dataView window, no change of the X-extension e. For the new click in this new X-extent, the new interval is six pixels again. You can discard the changes to the container with "Undo Append". First, in what function should we calculate the transform matrix? It is a rather dumb class. Because normally in scientific data the Y-axis goes up, the top value is greater than the bottom value. The choice of the tension depends on type of the curve and number of data points.

Register Already Registered? If it is set to true, the container will be redrawn. If you have an account, sign in now to post with your account. The only bummer here is that now that it's all kicking off I will be on holiday for a few days and hardly able to log in. You can insert any number of charts, up to 25 charts, in the container. To get the drawing rightly, we have to scale the container data space to the client space and translate the results to the origin in the client space. To get the chart's X- and Y-extents, we need to find minimum and maximum values of the X and Y coordinates. Second, the Invert function calculates the data members of the inverted matrix. We do it by drawing the circles around the data points.

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We do it by drawing the circles around the data points. You can also print the chart data tables from the data view window.

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