3d Model view

I am getting the surface shown in the picture that i am attaching below ,I want triangle with the same color and texture Could you please guide me on the same. and one more thing ,This is because the triangles are not oriented consistently which only makes sense if the output is a true oriented surface without any artifact.if any one suggest me which visualization tool where it shows the triangles without considering orientation in WPF, i have used helix toolkit in WPF but it gives same result </matlabcentral/answers/uploaded_files/79581/Capture.PNG>

[KSSV]

Unable to open image.....

[Chirag Bhuva]

[KSSV]

You must be having (x,y,z) data and nodal connectivity data, using trisurf you should be able to plot this.

[Chirag Bhuva]

I am using obj file or stl file which it gives only x,y,z points and triangulate faces when i opend this obj file it gives the same result in Meshlab or helixtoolkit in wpf but i don't need this type of result. i want only same color of triangles so can you suggest me how to do this