PointParams Table
The PointParams table contains properties used by the CMeasurePoints class. This table is used to change properties using the class SetParams method.
The reference table below lists the point measurement properties and their update status. For each property in the top half of the table, there exists a corresponding update status flag in the lower half of the table. The name of the update status flag prefixes the property name with the word Set. For example, the property bCentroid has the update status flag bSetCentroid. Normally, the update status flag is set to false. But to change it using the PointParams table, you must the the status flag to true. Create a PointParams table containing only the properties you wish to change. Then call the class SetParams method with the PointParams table as its parameter.
Table Member |
Default |
Definition |
Property: |
|
|
sColor |
"255,0,0" |
The color of the point. See the nRasterOp property. |
nRasterOp |
13 |
Controls the way the marker color and image color are combined for drawing. The default draw markers with a solid line of color sColor. |
nMarkerSize |
33 |
Sets the length and width of the crosshair marker, in pixels. |
nLineThk |
1 |
Sets the thickness of the marker line, in pixels, drawn on the image. |
nMatchingTol |
3 |
Sets the tolerance, in pixels, for mouse click "hits" to the point. |
nCentroidRadius |
15 |
The centroid radius when the vertex is adjusted to the centroid coordinates. |
nTrackingSearchRadius |
15 |
Specifies the tracking radius when transferring point marker coordinates to the next image in the image set. |
bCentroid |
false |
Specifies whether the vertex coordinate is updated to centroid coordinates before drawing on the image. |
bCentroidPositive |
false |
Specifies whether the centroid calculation assumes the object has positive (true) or negative (false) values relative to the background. |
bCentroidAfterMove |
false |
Specifies whether the vertex coordinate is updated to centroid coordinates before drawing on the image. |
bCentroidTrack |
false |
Specifies whether the centroid is computed for the vertex when transferring point markers from one image to the next. |
bUseDockingPane |
false |
Specifies whether to list point measurements in a docking pane (true) instead of a measurement window (false). |
Update Status: |
|
|
bSetColor |
false |
Enables changes to sColor. |
bSetRasterOp |
false |
Enables changes to nRasterOp. |
bSetMarkerSize |
false |
Enables changes to nMarkerSize. |
bSetLineThk |
false |
Enables changes to nLineThk. |
bSetMatchingTol |
false |
Enables changes to nMatchingTol. |
bSetCentroidRadius |
false |
Enables changes to nCentroidRadius. |
bSetTrackingSearchRadius |
false |
Enables changes to nTrackingSearchRadius. |
bSetCentroid |
false |
Enables changes to bCentroid. |
bSetCentroidPositive |
false |
Enables changes to bCentroidPositive. |
bSetCentroidAfterMove |
false |
Enables changes to bCentroidAfterMove. |
bSetCentroidTrack |
false |
Enables changes to bCentroidTrack. |
bSetUseDockingPane |
false |
Enables changes to bUseDockingPane. |
Suppose an image window exists on the Mira screen and you have a collection of approximate coordinates of objects you wish to mark on the image at improves coordinates based on the centroid computation. The script below enables centroid computation and sets the marker size, drawing color, and line thickness for the point markers.
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-- attach an image window |
|
-- leave script if no image window |
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|
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-- get the top-most or only image |
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-- leave script if no image |
|
|
|
-- create a CMeasurePoints object |
|
-- setup an PointParams table |
|
-- use a comma after each "name=value" pair |
|
-- enable centroid for points |
|
|
|
-- enable new marker color |
|
|
|
-- enable new marker size |
|
|
|
-- enable new line thickness |
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|
|
|
|
-- set the new properties |
|
|
|
-- coordinates of the point to mark |
|
-- Add an point marker to the image |
CMeasurePoints class, SetParams
Mira Pro x64 Script User's Guide, Copyright Ⓒ 2023 Mirametrics,
Inc. All Rights Reserved.