Wpf中用HelixToolkit轻松加载SolidWorks导出3D模型

时隔多年，HelixToolkit.SharpDX真的加强不少，得益于assimp-net这个项目，HelixToolkit可以加载各种模型并播放动画，下面就来看看HelixToolkit如何与SolidWorks碰撞出火花

一、加载SolidWorks导出的XAML来显示模型

我们在SolidWorks工程内，另存为XAML格式，我就不贴全了

<Viewport3D>
    <Viewport3D.Camera>
        <OrthographicCamera Position="1.186027,1.102421,1.711027" LookDirection="-0.577382,-0.577288,-0.577382" UpDirection="-0.408204,0.816541,-0.408204" NearPlaneDistance="1.027074" FarPlaneDistance="3.081221" Width="2.054147"/>
    </Viewport3D.Camera>
    <Viewport3D.Children>
        <ModelVisual3D>
            <ModelVisual3D.Transform>
                <RotateTransform3D>
                    <RotateTransform3D.Rotation>
                        <AxisAngleRotation3D Angle="0" Axis="0,1,0"/>
                    </RotateTransform3D.Rotation>
                </RotateTransform3D>
            </ModelVisual3D.Transform>
            <ModelVisual3D.Children>
                <ModelVisual3D>
                    <ModelVisual3D.Content>
                        <Model3DGroup>
                            <Model3DGroup.Children>
                                <AmbientLight Color="#262626"/>
                                <DirectionalLight Color="#6F6F6F" Direction="3.150000,-8.090000,-4.960000"/>
                                <DirectionalLight Color="#454545" Direction="8.610000,4.820000,-1.640000"/>
                                <DirectionalLight Color="#332835" Direction="-9.490000,3.090000,0.600000"/>
                                <DirectionalLight Color="#151515" Direction="-5.500000,-8.300000,-1.100000"/>
                            </Model3DGroup.Children>
                        </Model3DGroup>
                    </ModelVisual3D.Content>
                </ModelVisual3D>
                <ModelVisual3D>
                    <ModelVisual3D.Transform>
                        <MatrixTransform3D Matrix="1.000000 0.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 0.000000 1.000000 "/>
                    </ModelVisual3D.Transform>
                    <ModelVisual3D.Content>
                        <Model3DGroup>
                            <Model3DGroup.Children>
                                <GeometryModel3D>
                                    <GeometryModel3D.Material>
                                        <MaterialGroup>
                                            <DiffuseMaterial>
                                                <DiffuseMaterial.Brush>
                                                    <SolidColorBrush Color="#C6C1BC" Opacity="1.000000"/>
                                                </DiffuseMaterial.Brush>
                                            </DiffuseMaterial>
                                            <SpecularMaterial SpecularPower="0.700000">
                                                <SpecularMaterial.Brush>
                                                    <SolidColorBrush Color="#8A8783" Opacity="1.000000"/>
                                                </SpecularMaterial.Brush>
                                            </SpecularMaterial>
                                        </MaterialGroup>
                                    </GeometryModel3D.Material>
                                    <GeometryModel3D.Geometry>
                                        <MeshGeometry3D Positions="-0.182068,0.380704,0.052289 -0.223695,0.357833,0.000000 -0.178693,0.382299,0.051022 -0.171721,0.385481,0.000000 -0.171721,0.385481"/>
                                    </GeometryModel3D.Geometry>

把它放到自己的wpf里面去，这个时候可以用代码随意的控制里面的元素了，但是操作不是很方便，能不能搞个旋转缩放的默认操作呢？ 这时候就用到HelixToolkit.Wpf了，

我们把ModelVisual3D节点，放到HelixToolkit的<HelixToolkit:HelixViewport3D ZoomExtentsWhenLoaded="True">控件节点中，便可以进行鼠标操作

 

 导出xaml不能导出太复杂的东西，因为所有格式里，xaml是最大的，贴到VS里去搞不好要崩溃

二、使用HelixToolkit.SharpDX加载SolidWorks导出的3mf

solidworks导出的格式里都比较奇葩，没有常见的.x .obj .fbx，剩下的格式里最通用的就是这个3mf格式了，这个格式就比xaml强多了

我们可以使用HelixToolkit.SharpDX工程里的FileLoadDemo去加载他看看

HelixToolkit.SharpDX会拥有更好的光照，更多的特性，潜力更大，性能更好。

大家自己也可以用普通的3dsmax，maya导出点常规格式玩玩，还支持fbx动画哦。