Use this vista to view and edit the results of the best fit regression data.
Element Property Tree
This tree lists attributes of the best fit element. Attribute values cannot be edited.
Regression Points Toolbar
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Copy to Text Editor
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Copies the regression data to the text editor that is associated with AutoCAD.
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Copy to Clipboard
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Copies regression data to the clipboard with the appropriate formatting. This tool is useful for importing the regression data into a spreadsheet.
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Add More Points
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Adds more regression points. This button launches the appropriate Create Object by Best Fit dialog box, which allows you to select more points to include in the regression analysis.
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Delete Selected Points
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Deletes selected points (rows) from the regression points table.
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Undo
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Reverses the last action.
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Redo
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Reverses the last undo command.
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Out of Sync -
Indicates that the best fit element has been modified and its parameters do not match the best fit regression data. Click this button to force the element to match the original best fit regression data.
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Empty Current Regression Sample Data -
Resets the regression points table and leaves the Regression Data dialog box open. New points may be added by clicking
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Create Element and Continue to Edit the Data -
Creates the element based on the data in the regression points table and leaves the Regression Data vista open.
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Dismiss this Vista -
Creates the element based on the data in the regression points table and closes the Regression Data vista. Other vistas in Panorama remain open.
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Display Help Topic -
Opens the Regression Data Vista (for Best Fit Element Analysis) help topic.
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Close
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Closes the Regression Data vista and all open vistas in Panorama. Hides temporary graphics in the drawing window. Regression data and temporary graphics are saved and will reappear when the Best Fit command is reentered.
Regression Points Table
- Pt No.
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Sequential number generated in the order in which the regression points were generated. Number is adjusted if regression points are added or deleted.
- Exclude
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Specifies the regression points to exclude from the best fit analysis.
- Pass Through
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Specifies a regression point which the best fit element must pass through. Only one pass-through point may be selected for a line. Two pass-through points may be selected for an arc or parabola.
- Point Northing
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Regression point’s Northing value. This value may be edited.
- Point Easting
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Regression point’s Easting value. This value may be edited.
- Point Chainage
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For best fit profile elements, the regression point’s chainage value. This value may be edited.
- Point Level
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For best fit profile elements, the regression point’s level value. This value may be edited.
- Weight
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Specifies the regression point’s preference in relation to other points. A higher value gives a point preference over points with lower values. This value may be edited, but it must be greater than zero.
- Offset to Element
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Specifies the distance of the regression point from the best fit element.
- Northing on Element
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Specifies the Northing ordinate from the best fit element.
- Easting on Element
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Specifies the Easting ordinate from the best fit element.
Regression Graph
This graph displays the regression points’ relationship to the best fit element. The red line represents the regression points and the green line represents the best fit element. Selecting a row in the Regression Points table displays an X and dashed line in the graph to indicate the location of the selected point. The selected point is also highlighted in the drawing window.