Topic: SelectionFilter based on Circle's center coordinate

[ThisisforAiur]

Hi,
Is there a way to implement a selectionfilter based on the circle's center coordinate with C# like one of the criteria in FILTER command?
Let say I want to select the circles with the center X>=0 and Y>=0 and Z=0.
With the following code it can create a filter to select the circles with radius >=10.0.
But I can not find a way to implement the filter based on circle's center coordinate.
Is that possible to do so?

    TypedValue[] Arr = new TypedValue[]
    {
        new TypedValue((int)DxfCode.Start, "CIRCLE"),
        new TypedValue((int)DxfCode.Operator, ">="),
        new TypedValue((int)DxfCode.Real, 10.0),
    }

Thanks!

[gile]

Hi,

try like this:

Code - C#: [Select]

1. var typedValues = new[]
2. {
3.     new TypedValue(0, "CIRCLE"),
4.     new TypedValue(-4, ">=,>=,="),
5.     new TypedValue(10, new Point3d(0.0, 0.0, 0.0))
6. };

The AutoLISP documentation is the most exhaustive one about selection filters. You can read this section and its related topics.

[ThisisforAiur]

Hi Gile.
Thanks a lot!
Kind of surprised that the operator parameter can take multiple operations in one with comma separated.