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The Pie Chart plug-in draws a pie chart, filled with data out of a Shared Memory Map.

You can use delimited strings or arrays for data transfer via Scene-, Global- or Distributed-Shared Memory.

Supported Pipelines

Classic Render Pipeline

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Viz Engine Render Pipeline

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This page contains the following topics and procedures:

Pie Chart Properties

  • Shared Mem.: Changes between Scene, Global and Distributed Shared Memory. Use Inactive memory to not forward any values via Shared Memory and the data is taken from the Data field.

  • Data: Determines Shared Memory key name. Data is the default input parameter.

  • Transfer Mode: Sets string- or array-based data transfer.

  • Data Delim.: Defines the value separator sign(s).

  • Number Format: Defines if Viz should get the decimal point separator from the System Locale or Custom settings. If Custom is enabled:

    • Decimal Symbol: Defines which symbol is used as decimal point when Custom Number Format is set.

  • Data Fit: Enables data normalization.

    • Data Offset: Adds an offset to the incoming data.

  • Values Animation: Sets the animation type to be created when data change is detected.

    • Disable: No animation.

    • Timer: Creates data transition animation (from an old set of data to a new set) within the specified time set in Duration sec.. Also select an Animation Mode.

    • Director: Creates data transition animation with the Stage Director, that controls the Animation Progress parameter from 0.0% (old data) to 100.0% (new data). Also select an Animation Mode.

  • Animation Mode:

    • Concurrent: Changes all nodes concurrently.

    • Left to Right: Transitions from left to right.

    • Right to Left: Transitions from right to left.

  • Balance Speed: Relates node values to the position of transformed data when set to On and Animation Mode is set to Left to Right or Right to Left.

Example:

  • Balance Speed: If the values of four nodes change from 0,0,0,0 to 1,9,90,900 in Left to Right mode at 50% of the transformation.

  • Balance Speed Off: Only the first two nodes are transformed to new values.

  • Balance Speed On: The first three nodes are already transformed to new values, and the last node also transformed to 44% of the new values, because the data change from 0 (0+0+0+0) to 1000 (1+9+90+900), at 50% of transformation (in this case the values is changed for 500 of 1000), the first three nodes are already finished and the last node is changed to 400.

  • Duration sec.: Sets the duration of the animation in seconds for Timer mode.

  • Diameter: Sets size of pie chart.

  • Total Segment deg: Sets the pie chart’s maximum angle in degrees (default: 100% equals 360 degrees).

  • Inner Cutoff: Cuts off a round piece from the cake’s center.

  • Height: Adjusts height.

  • Corners: Defines the minimum amount of corners at the pie’s edge. In dependency on the number of pieces an algorithm adds corners to always give the pie chart the same appearance.

  • Keep Proportions: If enabled, the pie chart would look real. Otherwise each piece’s radius is recalculated.

  • Const. Offset: Sets a constant gap width.

  • Center Offset: Determines each pieces’ distance from the pie’s center.

  • Piece Scaling:

    • All: All pieces equal 100%. 

    • Single: Every piece’s size is described by its own 100% (for example, three pieces mean 300%). 

    • Fit: All pieces equal 100%, but they are scaled relatively to fit their new area with the correct values.

  • Piece Size%: Parameter for the previous option.

  • Bevel: Activates Bevel mode.

    • Bevel Top: Chamfers cake’s top.

    • Bevel Bottom: Chamfers pie’s bottom.

    • Bevel Size%: Adjusts bevel’s size from 0 to 100.

    • Bevel Steps: Sets roundness via the number of segmentation steps.

  • Move Piece: Defines the piece for the next parameter operation. Starts with 0, -1 means nothing selected.

    • Center Offset: Offsets center for a certain piece.

    • Height Offset: Offsets height for a certain piece.

    • Effect Range: Sets the range of pieces to move.

    • Effect Distribution: Sets the distribution of the effect range.

  • Pos. Container: Translates every child container to a piece of cake.

    • Container Offset: Adds a certain center offset to each container.

    • Center Container: Centers each translated container.

    • PosX, Y, Z: Activates container translation on the particular axis.

    • Container Pos. Z%: Sets the relative position on the z axis for each child container.

  • Map

    • Color Bar: Sets a single color (V texture coordinate) for a certain piece (for example, three pieces: V = 0.0, V = 0.5 and V = 1.0).

    • Vertex: Uses vertex colors for each piece starting with ID 0. Color ID moves between the available vertex colors. Color lets you choose color for the current ID.

Note: A chamfer is a beveled edge connecting two surfaces.

To Create a Pie Chart

  1. Create a new group and add the Pie Chart plug-in to it.

  2. Open the Transformation Editor and set Position X and Y to -100.0 and Rotation Y to -25.0.

  3. Add a material and/or a texture to it.

  4. Open the Pie Chart editor and set the following parameters:

    • Set the following DataY values: 10,20,30,20,50,60,80,45,20.

    • Enable Keep Proportions.

    • Set Center Offset to 6.0.

    • Set Move Piece to 1.

    • Set Center and Height Offset to 20.0.

    • Enable Vertex and set different colors for all Color IDs.

To Create a Pie Chart with Data Animation

Chart Animation Using Data Import

Prepare data sets for animation in Excel file.

  1. Start Microsoft Excel.

  2. Enter ExcelData1 into cell A1.

  3. Add some sample values in the cells below (A2-A8: 80, 35, 45, 75, 85, 55, 60).

  4. Enter ExcelData2 into cell A2.

  5. Add some sample values in the cells below (B2-B9: 80, 35, 45, 75, 40, 85, 55, 60).

  6. Enter ExcelData3 into cell A3.

  7. Add some sample values in the cells below (C2-C9: 40, 60, 75, 85, 80, 55, 45, 35).

  8. Enter ExcelData4 into cell A4.

  9. Add some sample values in the cells below (D2-D8: 60, 75, 85, 80, 55, 45, 35).

  10. Rename this first sheet to MyTable (can be done with a double click on the sheet name at the bottom).

  11. Follow one of the following methods to make Viz Engine can read this Excel data file.

    1. Save and close the Excel document.

    2. Share the Excel document.

      1. On the Review tab, in the Changes group, click the Share Workbook button.

      2. The Share Workbook dialog box appears, and you select the Allow changes by more than one user at the same time. check box on the Editing tab.

      3. Click OK.

      4. Save the Excel document.

IMPORTANT! You must use the same platform (x64/x86) of Microsoft Excel and Viz Engine.

Create a Data Animation scene

  1. Follow the "To create a Pie Chart" instruction.

  2. Modify the following parameters of the Pie Chart plug-in.

    • Change Shared Mem. to Scene.

    • Set Data Delim. to #.

    • Set Values Animation to Timer.

  3. Add Data Import to the same container.

    1. Set File to above prepared Excel file.

    2. Set Table / Sheet to MyTable.

    3. Set Column(,Col...) to ExcelData1.

    4. Set Data Delim. to #.

    5. Set Shared Mem. to Scene.

    6. Set Key to Data.

  4. Click the GetIt button and chart shows from zero to seven nodes.

  5. Change to the another data set.

    1. Set Column(,Col...) to ExcelData2 or ExcelData3 or ExcelData4.

    2. Click the GetIt button.

  6. Repeat step 5 with another data set including ExcelData1.

Note: You can add more data columns and play with animation on difference data change.

Chart Animation Using Control Chart

  1. Follow the "To create a Pie Chart" instruction.

  2. Modify the following parameters of the Pie Chart plug-in.

  3. Change Values Animation property to Timer.

  4. Add Control Chart to the same container and save the scene.

  5. Open Viz Trio.

    • Import the scene.

    • Click "1 (PieChart)" in Tab Fields.

    • Edit values in Editing Template.

See Also