/// <summary>
/// 创建并加载点云
/// </summary>
/// <returns></returns>
IRenderModelPoint CreatePointCloud()
{
//准备容器
IModel model = new ResourceFactory().CreateModel();
IDrawGroup drawGroup = new DrawGroup();
IDrawPrimitive drawPrimitive = new DrawPrimitive();
IFloatArray verList = new FloatArray(); //点集
IUInt32Array colorList = new UInt32Array(); //点色
//点坐标
float x = 3.3f, y = 4.4f, z = 5.5f;
//点色
byte a = 128, r = 255, g = 255, b = 255;
uint col = (uint)(b | g << 8 | r << 16 | a << 24); //argb => uint
for (int i = 0; i < 10; i++)
{
verList.Append(x);
verList.Append(y);
verList.Append(z);
colorList.Append(col);
}
//塞入容器
drawPrimitive.VertexArray = verList;
drawPrimitive.ColorArray = colorList;
drawPrimitive.Material.EnableBlend = false; //关闭融合
drawPrimitive.Material.EnableLight = false; //关闭光照
drawPrimitive.PrimitiveMode = gviPrimitiveMode.gviPrimitiveModeLineList; //设置绘制模式为点
drawGroup.AddPrimitive(drawPrimitive); //塞入渲染组
model.AddGroup(drawGroup); //塞入model
axRenderControl.ObjectManager.AddModel("modelName", model); //塞入三维对象，与modelPoint通过名称匹配
//创建modelPoint,用于索引模型
IModelPoint mp = (IModelPoint) new GeometryFactory().CreateGeometry(gviGeometryType.gviGeometryModelPoint, gviVertexAttribute.gviVertexAttributeZ);
mp.SpatialCRS = (SpatialCRS)CRSFactory.CreateFromWKT("wkt"); //设置坐标系
mp.ModelEnvelope = model.Envelope; // 排除不显示BUG
mp.SetCoords(3.3, 4.4, 5.5, 0, 0);
mp.ModelName = "modelName"; //匹配模型
return(axRenderControl.ObjectManager.CreateRenderModelPoint(mp, null, Guid.Empty)); //创建完成
}
private IModel CreateModel(float lenght, float width, float height, uint color)
{
IModel model = new ResourceFactory().CreateModel();
IDrawGroup group = new DrawGroup();
IDrawPrimitive primitive = new DrawPrimitive();
IFloatArray vertexArray = new FloatArray();
IFloatArray textureArray = new FloatArray();
IUInt32Array colorArray = new UInt32Array();
#region
//顶点数组3个为一组(三角面1)
vertexArray.Append(0.0f); vertexArray.Append(0.0f); vertexArray.Append(0.0f);
vertexArray.Append(lenght); vertexArray.Append(lenght); vertexArray.Append(0.0f);
vertexArray.Append(lenght); vertexArray.Append(0.0f); vertexArray.Append(0.0f);
//顶点数组3个为一组(三角面2)
vertexArray.Append(0.0f); vertexArray.Append(0.0f); vertexArray.Append(0.0f);
vertexArray.Append(0.0f); vertexArray.Append(lenght); vertexArray.Append(0.0f);
vertexArray.Append(lenght); vertexArray.Append(lenght); vertexArray.Append(0.0f);
//顶点数组3个为一组(三角面3)
vertexArray.Append(lenght); vertexArray.Append(0.0f); vertexArray.Append(0.0f);
vertexArray.Append(lenght); vertexArray.Append(lenght); vertexArray.Append(0.0f);
vertexArray.Append(lenght); vertexArray.Append(0.0f); vertexArray.Append(lenght);
//顶点数组3个为一组(三角面4)
vertexArray.Append(lenght); vertexArray.Append(lenght); vertexArray.Append(0.0f);
vertexArray.Append(lenght); vertexArray.Append(lenght); vertexArray.Append(lenght);
vertexArray.Append(lenght); vertexArray.Append(0.0f); vertexArray.Append(lenght);
//顶点数组3个为一组(三角面5)
vertexArray.Append(lenght); vertexArray.Append(lenght); vertexArray.Append(0.0f);
vertexArray.Append(0.0f); vertexArray.Append(lenght); vertexArray.Append(0.0f);
vertexArray.Append(lenght); vertexArray.Append(lenght); vertexArray.Append(lenght);
//顶点数组3个为一组(三角面6)
vertexArray.Append(0.0f); vertexArray.Append(lenght); vertexArray.Append(0.0f);
vertexArray.Append(0.0f); vertexArray.Append(lenght); vertexArray.Append(lenght);
vertexArray.Append(lenght); vertexArray.Append(lenght); vertexArray.Append(lenght);
//顶点数组3个为一组(三角面7)
vertexArray.Append(0.0f); vertexArray.Append(0.0f); vertexArray.Append(0.0f);
vertexArray.Append(0.0f); vertexArray.Append(lenght); vertexArray.Append(lenght);
vertexArray.Append(0.0f); vertexArray.Append(lenght); vertexArray.Append(0.0f);
//顶点数组3个为一组(三角面8)
vertexArray.Append(0.0f); vertexArray.Append(0.0f); vertexArray.Append(0.0f);
vertexArray.Append(0.0f); vertexArray.Append(0.0f); vertexArray.Append(lenght);
vertexArray.Append(0.0f); vertexArray.Append(lenght); vertexArray.Append(lenght);
//顶点数组3个为一组(三角面9)
vertexArray.Append(0.0f); vertexArray.Append(0.0f); vertexArray.Append(lenght);
vertexArray.Append(lenght); vertexArray.Append(0.0f); vertexArray.Append(lenght);
vertexArray.Append(0.0f); vertexArray.Append(lenght); vertexArray.Append(lenght);
//顶点数组3个为一组(三角面10)
vertexArray.Append(lenght); vertexArray.Append(0.0f); vertexArray.Append(lenght);
vertexArray.Append(lenght); vertexArray.Append(lenght); vertexArray.Append(lenght);
vertexArray.Append(0.0f); vertexArray.Append(lenght); vertexArray.Append(lenght);
//顶点数组3个为一组(三角面11)
vertexArray.Append(0.0f); vertexArray.Append(0.0f); vertexArray.Append(0.0f);
vertexArray.Append(lenght); vertexArray.Append(0.0f); vertexArray.Append(0.0f);
vertexArray.Append(lenght); vertexArray.Append(0.0f); vertexArray.Append(lenght);
//顶点数组3个为一组(三角面12)
vertexArray.Append(0.0f); vertexArray.Append(0.0f); vertexArray.Append(0.0f);
vertexArray.Append(lenght); vertexArray.Append(0.0f); vertexArray.Append(lenght);
vertexArray.Append(0.0f); vertexArray.Append(0.0f); vertexArray.Append(lenght);
#endregion
#region
//颜色数组1个为一组
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
colorArray.Append(color);
#endregion
#region
//纹理数组2个为一组
textureArray.Append(0.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
textureArray.Append(1.0f);
textureArray.Append(0.0f);
textureArray.Append(1.0f);
#endregion
primitive.ColorArray = colorArray;
primitive.TexcoordArray = textureArray;
primitive.VertexArray = vertexArray;
IDrawMaterial material = new DrawMaterial();
material.EnableLight = true;
primitive.Material = material;
group.AddPrimitive(primitive);
//光照效果，跟法向有关
group.ComputeNormal();
model.AddGroup(group);
return(model);
}
/// <summary>
/// 参数化建模
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnDriveModel_Click(object sender, System.EventArgs e)
{
try
{
if (polyline != null)
{
center = polyline.Envelope.Center;
IModelPoint mp = new GeometryFactory().CreateGeometry(gviGeometryType.gviGeometryModelPoint, gviVertexAttribute.gviVertexAttributeZ) as IModelPoint;
mp.SpatialCRS = datasetCRS;
mp.Position = center;
IModel model = new ResourceFactory().CreateModel();
IDrawGroup group = new DrawGroup();
IDrawPrimitive primitive = new DrawPrimitive();
IDrawMaterial material = new DrawMaterial();
material.TextureName = (strMediaPath + @"\shp\road\textrure.jpg");
material.CullMode = gviCullFaceMode.gviCullNone;
material.WrapModeS = gviTextureWrapMode.gviTextureWrapRepeat;
material.WrapModeT = gviTextureWrapMode.gviTextureWrapRepeat;
IFloatArray va = new FloatArray();
IFloatArray ta = new FloatArray();
// 逐点外扩
for (int i = 0; i < polyline.PointCount; i++)
{
#region 单独处理最后一个点
if (i == polyline.PointCount - 1)
{
curPoint = polyline.GetPoint(i);
vecCurPos = curPoint.Position;
// 最后一个点重用最后的方向向量
vecTarget = vecDirect.CrossProduct(vecZ);
vecTarget.Normalize();
vecTarget.MultiplyByScalar(width / 2);
vecP = vecCurPos.Add(vecTarget);
vecTarget.MultiplyByScalar(-1);
vecQ = vecCurPos.Add(vecTarget);
// 设置外扩点
P = curPoint.Clone() as IPoint;
P.Position = vecP;
Q = curPoint.Clone() as IPoint;
Q.Position = vecQ;
// 把点坐标加进顶点数组
va.Append((float)(vecP.X - center.X));
va.Append((float)(vecP.Y - center.Y));
va.Append((float)(vecP.Z - center.Z));
va.Append((float)(vecQ.X - center.X));
va.Append((float)(vecQ.Y - center.Y));
va.Append((float)(vecQ.Z - center.Z));
// 加纹理坐标
ta.Append(0); //P点纹理
if (i == 0)
{
lastV = 0.0;
}
else
{
lastV = lastV + length / 10; //v方向上每隔10米重复一次
}
ta.Append((float)lastV);
ta.Append(1); //Q点纹理
ta.Append((float)lastV);
{
ISimplePointSymbol ps = new SimplePointSymbol();
ps.FillColor = System.Drawing.Color.Yellow;
ps.Size = 5;
rPointToDelList.Add(this.axRenderControl1.ObjectManager.CreateRenderPoint(P, ps, rootId));
rPointToDelList.Add(this.axRenderControl1.ObjectManager.CreateRenderPoint(Q, ps, rootId));
}
break;
}
#endregion
// 当不是最后一个点时：
curPoint = polyline.GetPoint(i);
nextPoint = polyline.GetPoint(i + 1);
vecCurPos = curPoint.Position;
vecNextPos = nextPoint.Position;
// 运算
vecNextPos.MultiplyByScalar(-1);
vecDirect = vecCurPos.Add(vecNextPos); //方向向量
vecZ.Set(0, 0, 1);
vecTarget = vecDirect.CrossProduct(vecZ);
vecTarget.Normalize();
vecTarget.MultiplyByScalar(width / 2);
vecP = vecCurPos.Add(vecTarget);
vecTarget.MultiplyByScalar(-1);
vecQ = vecCurPos.Add(vecTarget);
// 设置外扩点
P = curPoint.Clone() as IPoint;
P.Position = vecP;
Q = curPoint.Clone() as IPoint;
Q.Position = vecQ;
// 把点坐标加进顶点数组
va.Append((float)(vecP.X - center.X));
va.Append((float)(vecP.Y - center.Y));
va.Append((float)(vecP.Z - center.Z));
va.Append((float)(vecQ.X - center.X));
va.Append((float)(vecQ.Y - center.Y));
va.Append((float)(vecQ.Z - center.Z));
// 加纹理坐标
ta.Append(0); //P点纹理
if (i == 0)
{
lastV = 0.0;
}
else
{
lastV = lastV + length / 5; //v方向上每隔10米重复一次
}
length = vecDirect.Length; //计算长度给奇数点用
ta.Append((float)lastV);
ta.Append(1); //Q点纹理
ta.Append((float)lastV);
{
ISimplePointSymbol ps = new SimplePointSymbol();
ps.FillColor = System.Drawing.Color.Yellow;
ps.Size = 5;
rPointToDelList.Add(this.axRenderControl1.ObjectManager.CreateRenderPoint(P, ps, rootId));
rPointToDelList.Add(this.axRenderControl1.ObjectManager.CreateRenderPoint(Q, ps, rootId));
}
}
// 计算索引坐标
IUInt16Array ia = new UInt16Array();
for (int i = 0; i < va.Length / 6 - 1; i++)
{
ia.Append((ushort)(2 * i));
ia.Append((ushort)(2 * i + 1));
ia.Append((ushort)(2 * i + 2));
ia.Append((ushort)(2 * i + 1));
ia.Append((ushort)(2 * i + 3));
ia.Append((ushort)(2 * i + 2));
}
primitive.VertexArray = va;
primitive.TexcoordArray = ta;
primitive.IndexArray = ia;
primitive.Material = material;
group.AddPrimitive(primitive);
model.AddGroup(group);
// 在内存中临时存储模型
string modelName = fid.ToString();
this.axRenderControl1.ObjectManager.AddModel(modelName, model);
mp.ModelName = modelName;
mp.ModelEnvelope = model.Envelope;
// 可视化临时模型
IRenderModelPoint rmp = this.axRenderControl1.ObjectManager.CreateRenderModelPoint(mp, null, rootId);
rmp.MaxVisibleDistance = 100000;
rmp.MouseSelectMask = gviViewportMask.gviViewNone;
rModelpointToDelList.Add(rmp);
}
}
catch (System.Exception ex)
{
if (ex.GetType().Name.Equals("UnauthorizedAccessException"))
{
MessageBox.Show("需要标准runtime授权");
}
else
{
MessageBox.Show(ex.Message);
}
}
}