[orx-mesh] Add generated and verified documentation

This commit is contained in:
Edwin Jakobs
2025-01-24 20:48:21 +01:00
parent 3073e88875
commit 023b52a4fc
12 changed files with 405 additions and 65 deletions

View File

@@ -6,8 +6,10 @@ import org.openrndr.math.Vector3
import org.openrndr.math.Vector4
import kotlin.math.*
/**
* Indexed polygon interface
* Represents an indexed polygon in 3D space. The polygon is defined using indices referencing
* the various attributes (e.g., position, texture coordinates, normals) provided in an external vertex data.
*/
interface IIndexedPolygon {
/**
@@ -53,10 +55,13 @@ interface IIndexedPolygon {
)
}
/**
* Determine if polygon is planar
* @param vertexData the vertex data
* @param eps error tolerance
* Checks if the polygon defined by the given vertex data is planar.
*
* @param vertexData The vertex data that contains the positions of the polygon's vertices.
* @param eps A small tolerance value used to determine planarity. Defaults to 1E-2.
* @return True if the polygon is planar, false otherwise.
*/
fun isPlanar(vertexData: IVertexData, eps: Double = 1E-2): Boolean {
fun normal(i: Int): Vector3 {
@@ -76,8 +81,12 @@ interface IIndexedPolygon {
}
}
/**
* Determine polygon convexity
* Determines if the polygon defined by the given vertex data is convex.
*
* @param vertexData The vertex data containing the positions of the polygon's vertices.
* @return True if the polygon is convex, false otherwise.
*/
fun isConvex(vertexData: IVertexData): Boolean {
val planar = base(vertexData).inversed
@@ -130,8 +139,15 @@ interface IIndexedPolygon {
return abs(round(angleSum / (2 * PI))) == 1.0
}
/**
* Evaluate polygon normal
* Computes the normal vector of the polygon based on the given vertex data.
*
* The method calculates the cross product of two edges of the polygon
* and normalizes the resulting vector to obtain the normal.
*
* @param vertexData The vertex data that contains the positions of the polygon's vertices.
* @return A normalized 3D vector representing the normal of the polygon.
*/
fun normal(vertexData: IVertexData) : Vector3 {
val u = vertexData.positions[positions[1]] - vertexData.positions[positions[0]]
@@ -139,15 +155,28 @@ interface IIndexedPolygon {
return u.cross(v).normalized
}
/**
* Convert to [IPolygon]
* @param vertexData the vertex data required to build the [IPolygon]
* Converts the provided vertex data into a polygon representation.
*
* @param vertexData The vertex data containing positions, normals, texture coordinates, and other attributes of the vertices.
* @return A polygon created from the given vertex data.
*/
fun toPolygon(vertexData: IVertexData): IPolygon
}
/**
* Immutable indexed polygon implementation
* Represents a polygon defined by indices corresponding to vertex data such as positions,
* texture coordinates, colors, normals, tangents, and bitangents. It can be used to describe
* a geometric shape for rendering or processing in 3D graphics or geometry applications.
*
* @property positions List of indices referencing the vertex positions.
* @property textureCoords List of indices referencing the texture coordinates.
* @property colors List of indices referencing vertex colors.
* @property normals List of indices referencing vertex normals.
* @property tangents List of indices referencing vertex tangents.
* @property bitangents List of indices referencing vertex bitangents.
*/
data class IndexedPolygon(
override val positions: List<Int>,
@@ -175,10 +204,14 @@ data class IndexedPolygon(
}
}
/**
* Convert to a list of triangle [IndexedPolygon]
* Triangulates the polygon represented by the provided vertex data.
*
* Supports non-planar and non-convex polygons
* @param vertexData The vertex data that defines the positions, texture coordinates,
* colors, normals, tangents, and bitangents of the polygon vertices.
* @return A list of indexed triangles representing the triangulated polygon. Each triangle
* is defined using the vertex information from the provided vertex data.
*/
fun triangulate(vertexData: IVertexData): List<IndexedPolygon> {
return when {
@@ -232,15 +265,18 @@ data class IndexedPolygon(
)
}
/**
* Shift indices
* @param positions position index shift
* @param textureCoords texture coordinate index shift
* @param colors color index shift
* @param normals normal index shift
* @param tangents tangent index shift
* @param bitangents bitangent index shift
* Shifts the indices for position, texture coordinates, colors, normals, tangents, and bitangents
* by the specified amounts and returns a new IndexedPolygon with the updated indices.
*
* @param positions The amount to shift the position indices. Defaults to 0.
* @param textureCoords The amount to shift the texture coordinate indices. Defaults to 0.
* @param colors The amount to shift the color indices. Defaults to 0.
* @param normals The amount to shift the normal indices. Defaults to 0.
* @param tangents The amount to shift the tangent indices. Defaults to 0.
* @param bitangents The amount to shift the bitangent indices. Defaults to 0.
* @return A new IndexedPolygon with indices shifted by the provided values.
*/
fun shiftIndices(
positions: Int = 0,
@@ -261,8 +297,21 @@ data class IndexedPolygon(
}
}
/**
* Mutable indexed polygon implementation
* Represents a mutable 3D indexed polygon. This class allows modifications to its indices and
* provides functionality to transform vertex references into a corresponding polygon representation.
*
* The polygon is defined by indices referencing an external vertex data source, such as the
* position, texture coordinates, normals, colors, tangents, and bitangents of the vertices. These
* indices can be updated, providing flexibility for dynamic operations on the polygon.
*
* @property positions Mutable list of position indices defining the polygon's vertices.
* @property textureCoords Mutable list of texture coordinate indices defining the mapping of textures.
* @property normals Mutable list of normal indices, which specify the normals of the vertices.
* @property colors Mutable list of color indices specifying the vertex colors.
* @property tangents Mutable list of tangent indices, optional.
* @property bitangents Mutable list of bitangent indices, optional.
*/
data class MutableIndexedPolygon(
override val positions: MutableList<Int>,