In 2D, you specify the rotation of a marker symbol layer by specifying an angle, applied in a counterclockwise direction, around the marker's anchor point. The point symbol as a whole is rotated collectively, and the individual marker layers reflect this new orientation. For example, two marker symbol layers with angles of 5 and 10 degrees are updated to 25 and 30 degrees, respectively, when the Angle basic property of the point symbol is updated to 20 degrees. When there is more than one marker symbol layer in a point symbol, the angles of each marker layer are updated by the Angle basic property for the point symbol. In a 3D context such as the 3D Layers category of a scene, you specify angles relative to all three axes, and also specify how the marker should behave as you navigate through the scene. In a 2D context such as a map or the 2D Layers category of a scene, you rotate markers by setting a rotation angle. As with most symbol layer properties, these can be set explicitly, or dynamically by connecting the properties to attributes in your data. In each case, the markers have a specific orientation and rotation behavior in the symbol. They can also be in line symbols, placed along the length of the line or in relation to line endpoints, and in polygon symbols, either in the interior or along the outline. Marker symbol layers are an inherent part of point symbols.
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