CircleArc

The CircleArc node displays the angle between two segments as a portion of a circle. It supports both inner (smaller angle) and outer (larger angle) display and provides a way to increase arc radius.

You can define the number of faces used to represent the circle arc. The more faces an arc has, the smoother the arc will appear.

Platform support

This node is fully supported on XR-Windows, XR-Portable Windows, XR-Portable iOS, XR-Portable Android, and XR-Portable WASM platforms.

Code example

This is a code example for the CircleArc node.

<CircleArc name="angleMeasure" faces="128" texture="red.jpg" visible="true" center="0 0 -0.5" pointA="0 1.1 -0.5" pointB="0 0.8 0.3" mwxTemplate="modules/hand/circlearc_template.mwx" />

Advanced user customization

The CircleArc node requires loading a template MWX file. You can modify the MWX file to change the display part of the element by providing a different shader and material.

An example of a standard template MWX.

<?xml version="1.0" encoding="utf-8" ?>

<mwx version="1.0">

<Mesh type="Unified" name="circlearc_template|circlearc" version="1">

<transform scale="1.0 1.0 1.0"

rotation="-0.0 -0.0 -0.0 1.0"

translation="0.0 0.0 0.0"/>

<material>

<Material type="DX11" version="1.1">

<pass name="standard" shader="EngineLib|shTxt|default">

<param type="unknown" name="bObjectSpace" value="true"/>

<param type="unknown" name="bDoubleFace" value="true"/>

<param type="unknown" name="mDiffuseMap" value="TEXTURE_IMAGE"/>

</pass>

</Material>

</material>

<geometry>

<Geometry name="circlearc_template|circlearc" version="1">

<vertices num="VERTICES_NUM">

VERTICES_DATA

</vertices>

<faces num="FACES_NUM">

FACES_DATA

</faces>

</Geometry>

</geometry>

<obbox center="0.0 0.0 0.0"

hsize="1.0 0.0 1.0"

uaxis="1.0 0.0 0.0"

vaxis="0.0 1.0 0.0"

waxis="0.0 0.0 1.0"/>

<sphere center="0.0 0.0 0.0" radius="1.0"/>

</Mesh>

<extra>

<exportParams>

<exportHiddenFrozen value="false"/>

<enableOptimizations value="true"/>

<enableRadiosityChecks value="false"/>

<exportWorldSpace value="true"/>

<skipCompletionBoxes value="false"/>

<enableHierarchicalNames value="true"/>

<preferXMLTextValues value="true"/>

<deleteExistingDirectory value="false"/>

</exportParams>

</extra>

</mwx>

CircleArc fields

These are the fields for CircleArc node. Only the node-specific fields are indicated, not fields obtained by inheritance.

Field inheritance: NodeBase > CircleArc