public static SU.EntitiesRef Initialize()
{
SU.Initialize();
model = new SU.ModelRef();
SU.ModelCreate(model);
SU.EntitiesRef entities = new SU.EntitiesRef();
SU.ModelGetEntities(model, entities);
return(entities);
}
void UnpackMaterials(SU.ModelRef modelRef)
{
SU.ModelGetNumMaterials(modelRef, out long count);
SU.MaterialRef[] materialRefs = new SU.MaterialRef[count];
long len = count;
SU.ModelGetMaterials(modelRef, len, materialRefs, out count);
foreach (SU.MaterialRef materialRef in materialRefs)
{
Material material = new Material(materialRef);
materials.Add(material.Name, material);
}
}
internal void Pack(Model model, SU.ModelRef modelRef)
{
// The SketchUp API appears to add a "persistent ID" to vertices,
// edges, and faces, as they are added to definitions and groups.
// But it also appears not to do this unless the definition or
// group reference has already been added to the model. If you
// add those references to the model after creating their contents,
// SketchUp will detect the missing IDs on load and "fix" them,
// causing SketchUp to ask if you want to save the changes when
// you close (even though you won't think you've made any).
//
// You can see this in the "Edit / Undo Check Validity" menu item
// when it happens. Undo it, and then use the "Window / Model info"
// dialog, under "Statistics" by pressing the "Fix Problems"
// button. You'll get a report on the missing persistent IDs.
//
// To prevent all this from happening, we add the reference first.
GuaranteeReference();
SU.ComponentDefinitionRef[] componentDefinitionsArray =
new SU.ComponentDefinitionRef[1];
componentDefinitionsArray[0] = componentDefinitionRef;
SU.ModelAddComponentDefinitions(
modelRef,
1,
componentDefinitionsArray);
SU.ComponentDefinitionSetName(
componentDefinitionRef,
Name);
SU.ComponentDefinitionSetDescription(
componentDefinitionRef,
Description);
SU.EntitiesRef myEntitiesRef = new SU.EntitiesRef();
SU.ComponentDefinitionGetEntities(componentDefinitionRef, myEntitiesRef);
//entities.Pack(model, myEntitiesRef);
Pack(model, myEntitiesRef);
}
void UnpackComponents(SU.ModelRef modelRef)
{
SU.ModelGetNumComponentDefinitions(modelRef, out long count);
SU.ComponentDefinitionRef[] componentDefinitionRefs = new SU.ComponentDefinitionRef[count];
long len = count;
SU.ModelGetComponentDefinitions(modelRef, len, componentDefinitionRefs, out count);
foreach (SU.ComponentDefinitionRef componentDefinitionRef in componentDefinitionRefs)
{
CompDef component =
new CompDef(componentDefinitionRef);
components.Add(component.Name, component);
}
}
internal void Pack(SU.ModelRef suModelRef)
{
suMaterialRef = new SU.MaterialRef();
SU.MaterialCreate(suMaterialRef);
SU.MaterialSetName(suMaterialRef, Name);
switch (suMaterialType)
{
case SU.MaterialType_Colored:
SU.MaterialSetColor(suMaterialRef, Color.SUColor);
break;
case SU.MaterialType_Textured:
Texture.Pack();
SU.MaterialSetTexture(suMaterialRef, Texture.textureRef);
break;
case SU.MaterialType_ColorizedTexture:
SU.MaterialSetColor(suMaterialRef, Color.SUColor);
SU.MaterialSetColorizeType(suMaterialRef, suMaterialColorizeType);
Texture.Pack();
SU.MaterialSetTexture(suMaterialRef, Texture.textureRef);
break;
default:
throw new Exception($"Unknown material type = {suMaterialType}");
}
SU.MaterialRef[] suMaterialRefs = new SU.MaterialRef[1];
suMaterialRefs[0] = suMaterialRef;
SU.ModelAddMaterials(suModelRef, 1, suMaterialRefs);
}
/// <summary>
/// Construct a Model from a SketchUp file.
/// </summary>
/// <param name="path">SketchUp file path.</param>
public Model(string path)
{
SU.Initialize();
SU.ModelRef modelRef = new SU.ModelRef();
SU.ModelCreateFromFile(modelRef, path);
UnpackMaterials(modelRef);
UnpackComponents(modelRef);
SU.EntitiesRef entitiesRef = new SU.EntitiesRef();
SU.ModelGetEntities(modelRef, entitiesRef);
UnpackEntities(entitiesRef);
SU.ModelRelease(modelRef);
SU.Terminate();
}
public void WriteSketchUpFile(string path)
{
SU.Initialize();
SU.ModelRef modelRef = new SU.ModelRef();
SU.ModelCreate(modelRef);
// Load the SketchUp structures for our materials.
foreach (Material material in materials.Values)
{
material.Pack(modelRef);
}
// Load the SketchUp structures for our component definitions.
foreach (CompDef componentDefinition in components.Values)
{
componentDefinition.Pack(this, modelRef);
}
// Load the SketchUp structures for our entities.
SU.EntitiesRef entitiesRef = new SU.EntitiesRef();
SU.ModelGetEntities(modelRef, entitiesRef);
//entities.Pack(this, entitiesRef);
Pack(this, entitiesRef);
// Set style and camera.
SU.StylesRef stylesRef = new SU.StylesRef();
SU.ModelGetStyles(modelRef, stylesRef);
SU.StylesAddStyle(stylesRef, "base.style", true);
SU.CameraRef cameraRef = new SU.CameraRef();
SU.ModelGetCamera(modelRef, cameraRef);
SU.CameraSetOrientation(
cameraRef,
new SU.Point3D(
10, // * SU.MetersToInches,
-10, // * SU.MetersToInches,
10), // * SU.MetersToInches),
new SU.Point3D(0, 0, 0),
new SU.Vector3D(0, 0, 1));
SU.ModelSaveToFileWithVersion(modelRef, path, SU.ModelVersion_SU2017);
SU.ModelRelease(modelRef);
SU.Terminate();
// Mop up left-over references.
foreach (Material material in materials.Values)
{
material.suMaterialRef = null;
}
foreach (CompDef componentDefinition in components.Values)
{
componentDefinition.componentDefinitionRef = null;
}
}