API Reference › core-backend› ElementGeometry

ElementGeometry

Classes for defining the symbology and geometry of geometric elements

Classes

Name Description  
LineLayout Represents the layout of a single line within a paragraph of a text block.  
RunLayout Represents the layout of a single run (text, fraction, or line break) within a line of text.  
TextBlockLayout Describes the layout of a text block as a collection of lines containing runs.  
TextStyleResolver Resolves the effective style of TextBlockComponents and Leaders, taking into account overrides/style of the instance and its parent(s).  

Global Functions

Name Description  
appendFrameToBuilder Based on the frame style, this method will construct and append GeometryParams (for line style) and a Loop (for the frame shape) to the builder.  
appendLeadersToBuilder Constructs and appends leader lines and their terminators to the provided geometry builder for a text annotation.  
appendTextAnnotationGeometry Constructs the TextBlockGeometry and frame geometry and appends the geometry to the provided builder.  
computeElbowDirection Computes the direction vector for an "elbow" for leader based on the attachment point and a frame curve.  
computeFrame Computes the frame geometry based on the provided frame shape and range.  
computeGraphemeOffsets Computes the range from the start of a RunLayoutResult to the trailing edge of each grapheme.  
computeIntervalPoints Computes points along the edges of the frame geometry based on the provided frame shape, range, and interval factors.  
computeLayoutTextBlockResult Gets the result of laying out the the contents of a TextBlock into a series of lines containing runs.  
computeLeaderAttachmentPoint Computes the attachment point for a leader line on a text annotation frame.  
layoutTextBlock Lays out the contents of a TextBlock into a series of lines containing runs.  
produceTextBlockGeometry Produces the geometry for a text block in a way that can be interpreted by a GeometryStreamBuilder or ElementBuilder.Geometry.  

Interfaces

Name Description  
AppendTextAnnotationGeometryArgs Properties required to compute the geometry of a text annotation.  
ComputeFrameArgs Arguments for the computeFrame method.  
ComputeGraphemeOffsetsArgs Arguments supplied to computeGraphemeOffsets.  
ComputeIntervalPointsArgs Arguments for the computeIntervalPoints method.  
CreateFontFileFromShxBlobArgs Arguments supplied to createFromShxFontBlob.  
FontFile A container for one or more font faces, often originating as a file on disk.  
LayoutTextBlockArgs Arguments supplied to computeLayoutTextBlockResult.  
TextStyleResolverArgs Arguments used when constructing a TextStyleResolver.  

Namespaces

Name Description  
FontFile  
LineStyleDefinition A line style definition is a uniquely named pattern that repeats as it is displayed along a curve path.  

Last Updated: 28 July, 2025