EWDraw is a powerful vector graphics ActiveX for 2D and 3D visualisation and animation. You can use it for CAD,GIS and others. The EWDraw is based on Open CASCADE geometric kernel v 5.2 and openGL.
The library is realized as a run-time Windows 32 bit OCX (ActiveX control). Either can be used with applications written in the popular Visual IDE languages such as Visual Basic, Delphi, C++ Builder , Visual C++, .NET and INTERNET
EWDRAW 1.0 Capabilities
- View manipulation:
Zoom Dynamic, Zoom In/Out, Zoom All/Window.
Pan Dynamic, Pan Top/Bottom, Left/Right ,Up/Down , Front/Back
Robit.

Object construction:

- 2D primitives:
2D bitmap
2Dtext (useful for annotation)
2D/3D polyline
Line
Rectangle
Circle
Ellipse
Arc
Arc of ellipse
BSPline
Point
Polygon
Spiral
- Simple 3D primitives:
Box
Sphere
Cone
Cylinder
Torus
Wedge
- Complex 3D shapes:
Prism
Path
Revolve
meshes from BSPline (NURBS).
Loft:create complex solids from arbitrary cross sections.
Texture
3D Text
- Object editing:
Move
Rotate (either through ArcBall interface or by angle specification)
Scale
Mirror
Delete
Offset
Color
Line type
LINE width
Point style
Fillet 3DSolid
Chamerf 3DSolid
Draft 3DSolid
Transparency
Covert geometry to face
- Robust and efficient Boolean operations on 3D solid meshes:
Union
Intersect
Subtract(difference)
- Supports Layers
Layer on(off)
Set current layer
Add layer
Delete layer
Get Layer
Set layer color , linetype, linewidth
- Analysis
Length
Area
Volume
BoundingBox
- Import file
.rle .brep .csfdb .csf .stp .step .iges .igs
- Export file
.rle .brep .csfdb .csf .stp .step .iges .igs .stl .vrml .bmp .gif