private static void DrawArc(msgArc objA, RenderingMode mode, bool selSubObjects, bool asHot)
{
msgPointStruct[] pnts = objA.GetPoints();
if (mode == RenderingMode.GL_RENDER)
{
OpenGLControl.glPushAttrib(OpenGLControl.GL_ENABLE_BIT |
OpenGLControl.GL_LINE_BIT |
OpenGLControl.GL_CURRENT_BIT |
OpenGLControl.GL_LIGHTING_BIT);
OpenGLControl.glDisable(OpenGLControl.GL_LIGHTING);
OpenGLControl.glDisable(OpenGLControl.GL_TEXTURE_2D);
OpenGLControl.glLineWidth((float)(objA.GetAttribute(msgObjectAttrEnum.SG_OA_LINE_THICKNESS) + 1));
/*GLushort pattern = GetLineTypeByIndex(objA->GetAttribute(SG_OA_LINE_TYPE));
* if (pattern > 0)
* {
* glEnable(GL_LINE_STIPPLE);
* glLineStipple(1, pattern);
* }*/
if (asHot)
{
OpenGLControl.glColor3f(1.0f, 0.0f, 0.0f);
}
else
if (objA.IsSelect())
{
OpenGLControl.glColor3f(1.0f, 0.0f, 0.0f);
}
else
{
OpenGLControl.glColor3fv(GetColorByIndex(objA.GetAttribute(msgObjectAttrEnum.SG_OA_COLOR)));
}
OpenGLControl.glEnable(OpenGLControl.GL_LINE_SMOOTH);
OpenGLControl.glPushMatrix();
if (objA.GetTempMatrix() != null)
{
double[] transData = GetDoubles(objA.GetTempMatrix().GetTransparentData().values);
unsafe
{
fixed(double *matrixPtr = transData)
{
OpenGLControl.glMultMatrixd(matrixPtr);
}
}
}
OpenGLControl.glBegin(OpenGLControl.GL_LINE_STRIP);
for (int i = 0; i < pnts.Length; i++)
{
OpenGLControl.glVertex3d(pnts[i].x, pnts[i].y, pnts[i].z);
}
OpenGLControl.glEnd();
OpenGLControl.glPopMatrix();
OpenGLControl.glPopAttrib();
}
}
public static void CreateFromClips()
{
msgScene scene = msgScene.GetScene();
scene.Clear();
msgPointStruct tmpPnt = new msgPointStruct();
msgSplineStruct spl1 = msgSplineStruct.Create();
tmpPnt.x = 98.0; tmpPnt.y = 0.0; tmpPnt.z = -13.0;
spl1.AddKnot(tmpPnt, 0);
tmpPnt.x = 85.0; tmpPnt.y = 0.0; tmpPnt.z = 19.0;
spl1.AddKnot(tmpPnt, 1);
tmpPnt.x = 43.0; tmpPnt.y = 0.0; tmpPnt.z = -31.0;
spl1.AddKnot(tmpPnt, 2);
tmpPnt.x = 5.0; tmpPnt.y = 0.0; tmpPnt.z = -3.0;
spl1.AddKnot(tmpPnt, 3);
tmpPnt.x = -11.0; tmpPnt.y = 0.0; tmpPnt.z = -39.0;
spl1.AddKnot(tmpPnt, 4);
tmpPnt.x = -48.0; tmpPnt.y = 0.0; tmpPnt.z = 23.0;
spl1.AddKnot(tmpPnt, 5);
tmpPnt.x = -125.0; tmpPnt.y = 0.0; tmpPnt.z = 23.0;
spl1.AddKnot(tmpPnt, 6);
msgSpline spl1_obj = msgSpline.Create(spl1);
msgSplineStruct.Delete(spl1);
scene.AttachObject(spl1_obj);
spl1_obj.SetAttribute(msgObjectAttrEnum.SG_OA_COLOR, 12);
spl1_obj.SetAttribute(msgObjectAttrEnum.SG_OA_LINE_THICKNESS, 2);
msgSplineStruct spl2 = msgSplineStruct.Create();
tmpPnt.x = 96.0; tmpPnt.y = 150.0; tmpPnt.z = 8.0;
spl2.AddKnot(tmpPnt, 0);
tmpPnt.x = 66.0; tmpPnt.y = 150.0; tmpPnt.z = -20.0;
spl2.AddKnot(tmpPnt, 1);
tmpPnt.x = 12.0; tmpPnt.y = 150.0; tmpPnt.z = 37.0;
spl2.AddKnot(tmpPnt, 2);
tmpPnt.x = -128.0; tmpPnt.y = 150.0; tmpPnt.z = -23.0;
spl2.AddKnot(tmpPnt, 3);
msgSpline spl2_obj = msgSpline.Create(spl2);
msgSplineStruct.Delete(spl2);
scene.AttachObject(spl2_obj);
spl2_obj.SetAttribute(msgObjectAttrEnum.SG_OA_COLOR, 12);
spl2_obj.SetAttribute(msgObjectAttrEnum.SG_OA_LINE_THICKNESS, 2);
msgLine ln_obj = msgLine.Create(100.0, 100.0, 50.0, -121.0, 100.0, -50.0);
scene.AttachObject(ln_obj);
ln_obj.SetAttribute(msgObjectAttrEnum.SG_OA_COLOR, 12);
ln_obj.SetAttribute(msgObjectAttrEnum.SG_OA_LINE_THICKNESS, 2);
msgArcStruct arcG = new msgArcStruct();
msgPointStruct arcBeg = new msgPointStruct(98.0, 50.0, -80.0);
msgPointStruct arcEnd = new msgPointStruct(-117.0, 50.0, -80.0);
msgPointStruct arcMid = new msgPointStruct(-55.0, 50.0, -50.0);
arcG.FromThreePoints(arcBeg, arcEnd, arcMid, false);
msgArc arc_obj = msgArc.Create(arcG);
scene.AttachObject(arc_obj);
arc_obj.SetAttribute(msgObjectAttrEnum.SG_OA_COLOR, 12);
arc_obj.SetAttribute(msgObjectAttrEnum.SG_OA_LINE_THICKNESS, 2);
msg2DObject[] objcts = new msg2DObject[4];
objcts[0] = spl1_obj;
objcts[1] = arc_obj;
objcts[2] = ln_obj;
objcts[3] = spl2_obj;
double[] param = new double[4];
param[0] = param[1] = param[2] = param[3] = 0.0;
msgObject surf = msgSurfaces.SplineSurfaceFromSections(objcts, param, false);
scene.AttachObject(surf);
surf.SetAttribute(msgObjectAttrEnum.SG_OA_COLOR, 24);
msgVectorStruct transV1 = new msgVectorStruct(0, 0, -5);
surf.InitTempMatrix().Translate(transV1);
surf.ApplyTempMatrix();
surf.DestroyTempMatrix();
}
public static void CreateCoonsFrom3Curves()
{
msgScene scene = msgScene.GetScene();
scene.Clear();
msgPointStruct tmpPnt = new msgPointStruct();
msgSplineStruct spl1 = msgSplineStruct.Create();
tmpPnt.x = -6.0; tmpPnt.y = 0.0; tmpPnt.z = -1.0;
spl1.AddKnot(tmpPnt, 0);
tmpPnt.x = -5.0; tmpPnt.y = 0.0; tmpPnt.z = -2.0;
spl1.AddKnot(tmpPnt, 1);
tmpPnt.x = -3.0; tmpPnt.y = 0.0; tmpPnt.z = -1.0;
spl1.AddKnot(tmpPnt, 2);
tmpPnt.x = -2.0; tmpPnt.y = 0.0; tmpPnt.z = -2.0;
spl1.AddKnot(tmpPnt, 3);
tmpPnt.x = -1.0; tmpPnt.y = 0.0; tmpPnt.z = 1.0;
spl1.AddKnot(tmpPnt, 4);
tmpPnt.x = 2.0; tmpPnt.y = 0.0; tmpPnt.z = 1.0;
spl1.AddKnot(tmpPnt, 5);
tmpPnt.x = 2.0; tmpPnt.y = 0.0; tmpPnt.z = 0.0;
spl1.AddKnot(tmpPnt, 6);
tmpPnt.x = 4.0; tmpPnt.y = 0.0; tmpPnt.z = 1.0;
spl1.AddKnot(tmpPnt, 7);
msgSpline spl1_obj = msgSpline.Create(spl1);
msgSplineStruct.Delete(spl1);
scene.AttachObject(spl1_obj);
spl1_obj.SetAttribute(msgObjectAttrEnum.SG_OA_COLOR, 0);
spl1_obj.SetAttribute(msgObjectAttrEnum.SG_OA_LINE_THICKNESS, 1);
msgSplineStruct spl2 = msgSplineStruct.Create();
tmpPnt.x = -6.0; tmpPnt.y = 0.0; tmpPnt.z = -1.0;
spl2.AddKnot(tmpPnt, 0);
tmpPnt.x = -6.0; tmpPnt.y = 0.5; tmpPnt.z = 0.0;
spl2.AddKnot(tmpPnt, 1);
tmpPnt.x = -6.0; tmpPnt.y = 2.0; tmpPnt.z = -1.0;
spl2.AddKnot(tmpPnt, 2);
tmpPnt.x = -6.0; tmpPnt.y = 3.0; tmpPnt.z = 1.0;
spl2.AddKnot(tmpPnt, 3);
tmpPnt.x = -4.0; tmpPnt.y = 4.0; tmpPnt.z = 1.0;
spl2.AddKnot(tmpPnt, 4);
msgSpline spl2_obj = msgSpline.Create(spl2);
msgSplineStruct.Delete(spl2);
scene.AttachObject(spl2_obj);
spl2_obj.SetAttribute(msgObjectAttrEnum.SG_OA_COLOR, 50);
spl2_obj.SetAttribute(msgObjectAttrEnum.SG_OA_LINE_THICKNESS, 3);
msgPointStruct ArP1 = new msgPointStruct();
msgPointStruct ArP2 = new msgPointStruct();
msgPointStruct ArP3 = new msgPointStruct();
msgArcStruct ArcGeo = new msgArcStruct();
ArP1.x = -4.0; ArP1.y = 4.0; ArP1.z = 1.0;
ArP2.x = 4.0; ArP2.y = 0.0; ArP2.z = 1.0;
ArP3.x = 0.0; ArP3.y = 5.0; ArP3.z = -4.0;
ArcGeo.FromThreePoints(ArP1, ArP2, ArP3, false);
msgArc arcObj = msgArc.Create(ArcGeo);
scene.AttachObject(arcObj);
arcObj.SetAttribute(msgObjectAttrEnum.SG_OA_COLOR, 20);
arcObj.SetAttribute(msgObjectAttrEnum.SG_OA_LINE_THICKNESS, 3);
msg3DObject coons = (msg3DObject)msgSurfaces.Coons(spl1_obj, spl2_obj, arcObj, null, 36, 36, 4, 4);
scene.AttachObject(coons);
coons.SetAttribute(msgObjectAttrEnum.SG_OA_COLOR, 4);
msgVectorStruct transV1 = new msgVectorStruct(0, 0, -0.4);
coons.InitTempMatrix().Translate(transV1);
coons.ApplyTempMatrix();
coons.DestroyTempMatrix();
}