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C# : Modifying 3D color

Solution Partner Creator Solution Partner Creator
Solution Partner Creator

Hello ,

I want to modify a 3D geometry color (a 2D geometry after an extrusion).

Can someone help me please ?

My code change only the 2D geometry :




double x1 = Convert.ToDouble(textBox1.Text);
double x2 = Convert.ToDouble(textBox2.Text);
double y1 = Convert.ToDouble(textBox3.Text);

application = (SolidEdgeFramework.Application)
// Get a reference to the documents collection
documents = application.Documents;
// Create a new part document
part = (SolidEdgePart.PartDocument)
documents.Add("SolidEdge.PartDocument", Missing.Value);
// Get a reference to the profile sets collection
profileSets = part.ProfileSets;
// Add a new profile set
profileSet = profileSets.Add();
// Get a reference to the profiles collection
profiles = profileSet.Profiles;
// Get a reference to the ref planes collection
refplanes = part.RefPlanes;
// Add a new profile
profile = profiles.Add(refplanes.Item(3));

// Get a reference to the circles2d collection

cirs = profile.Circles2d;
cirs.AddByCenterRadius(x1, x2, y1);
cirs.Item(1).Style.LinearColor = colorDialog1.Color.ToArgb();

aProfiles = Array.CreateInstance(typeof(SolidEdgePart.Profile), 1);
aProfiles.SetValue(profile, 0);

// Get a reference to the models collection
models = part.Models;

// Create the extended protrusion.
model = models.AddFiniteExtrudedProtrusion(aProfiles.Length, ref aProfiles,
SolidEdgePart.FeaturePropertyConstants.igRight, 0.05, Missing.Value, Missing.Value, Missing.Value, Missing.Value);



Best regards.




Re: C# : Modifying 3D color

Solution Partner Phenom Solution Partner Phenom
Solution Partner Phenom

If you look at the "Part Painter" command, you have Face, Feature or Body options. Here is some code to access the style.


using SolidEdgeCommunity;
using SolidEdgeCommunity.Extensions;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace StyleDemo
    class Program
        static void Main(string[] args)

            var application = SolidEdgeUtils.Connect();
            var partDocument = application.GetActiveDocument<SolidEdgePart.PartDocument>();
            var model = partDocument.Models.Item(1);
            var protrusion = model.ExtrudedProtrusions.Item(1);

            // Feature styles
            var featureSstyle = protrusion.GetStyle();
            // Body styles
            var body = (SolidEdgeGeometry.Body)model.Body;
            var bodyStyle = body.Style;;

            // Face styles
            var faces = (SolidEdgeGeometry.Faces)protrusion.get_Faces(SolidEdgeGeometry.FeatureTopologyQueryTypeConstants.igQueryAll);

            foreach (var face in faces.OfType<SolidEdgeGeometry.Face>())
                var faceStyle = face.Style;





Jason Newell
Applications Architect

Re: C# : Modifying 3D color

Solution Partner Creator Solution Partner Creator
Solution Partner Creator



I add these lines to my last code :



var body = (SolidEdgeGeometry.Body)models.Item(1).Body; //Line 1
var bodyStyle = body.Style;// Line 2
bodyStyle.SetDiffuse(0, 0.99F, 0); // Line 3
bodyStyle.SetAmbient(0, 0.99F, 0); // Line 4
bodyStyle.SetEmission(0, 0.99F, 0); // Line 5



but unfortunately I get this error :


NullReferenceException: Object reference not set to an instance of an object. (In line 3 )


Could you help me please to resolve this problem ?