108 lines
2.7 KiB
JavaScript
108 lines
2.7 KiB
JavaScript
OV.ImporterOff = class extends OV.ImporterBase
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{
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constructor ()
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{
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super ();
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}
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CanImportExtension (extension)
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{
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return extension === 'off';
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}
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GetKnownFileFormats ()
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{
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return {
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'off' : OV.FileFormat.Text
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};
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}
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GetUpDirection ()
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{
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return OV.Direction.Y;
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}
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ClearContent ()
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{
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this.mesh = null;
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this.status = null;
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}
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ResetContent ()
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{
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this.mesh = new OV.Mesh ();
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this.model.AddMesh (this.mesh);
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this.status = {
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vertexCount : 0,
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faceCount : 0,
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foundVertex : 0,
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foundFace : 0
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};
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}
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ImportContent (fileContent, onFinish)
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{
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let obj = this;
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OV.ReadLines (fileContent, function (line) {
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if (!obj.IsError ()) {
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obj.ProcessLine (line);
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}
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});
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onFinish ();
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}
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ProcessLine (line)
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{
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if (line[0] === '#') {
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return;
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}
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let parameters = OV.ParametersFromLine (line, '#');
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if (parameters.length === 0) {
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return;
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}
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if (parameters[0] === 'OFF') {
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return;
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}
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if (this.status.vertexCount === 0 && this.status.faceCount === 0) {
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if (parameters.length > 1) {
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this.status.vertexCount = parseInt (parameters[0], 10);
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this.status.faceCount = parseInt (parameters[1], 10);
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}
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return;
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}
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if (this.status.foundVertex < this.status.vertexCount) {
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if (parameters.length >= 3) {
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this.mesh.AddVertex (new OV.Coord3D (
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parseFloat (parameters[0]),
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parseFloat (parameters[1]),
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parseFloat (parameters[2])
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));
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this.status.foundVertex += 1;
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}
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return;
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}
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if (this.status.foundFace < this.status.faceCount) {
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if (parameters.length >= 4) {
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let vertexCount = parseInt (parameters[0], 10);
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if (parameters.length < vertexCount + 1) {
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return;
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}
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for (let i = 0; i < vertexCount - 2; i++) {
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let v0 = parseInt (parameters[1]);
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let v1 = parseInt (parameters[i + 2]);
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let v2 = parseInt (parameters[i + 3]);
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let triangle = new OV.Triangle (v0, v1, v2);
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this.mesh.AddTriangle (triangle);
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}
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this.status.foundFace += 1;
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}
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return;
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}
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}
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};
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