Hi John,
a few comments:
- Please don't post the same question to more (sub) forums! It causes confusions only. If a question is accidentally created in a wrong forum, you can ask to move it to another one.
- Read and follow Programming Forum best practices and use correct subject format etc.
- Accordingly to the best practices, share important information, especially what MicroStation version (build number) do you use.
- Use Syntaxhighlighter tool (yellow pencil icon) and set a correct language when posting any code snippet.
[quote user="-"]how to extract all its vertices coordinates?[/quote]
Dim vertices() As Point3d vertices = oElement.AsVertexList.GetVertices()
The code is correct, mostly. In my opinion it's a bad style to cast general Element object to a specific one using "As*". If working with line string only, more robust code would be similar to this:
Dim el As Element
set el = ... // obtain an element
If (el.IsLineElement) Then
Dim line As LineElement
Set line = el.AsLineElement
Dim vertices() As Point3d
vertices = line.GetVertices()
End If
It can be extended to a general form whether not only line string should be used as an input element:
If (el.IsVertexList) Then
Dim vertexListElement As VertexList
Set vertexListElement = el.AsVertexList
Dim vertices() As Point3d
vertices = vertexListElement.GetVertices()
End If[quote user="-"]But all Micro Station VBA help examples are not clear at all[/quote]
MicroStation VBA examples demonstrate how to use a specific class or method, not where to use them, because a decision about VBA application architecture is a responsibility of developer.
[quote user="-"]which code to write in the module and which code to write in the class module[/quote]
With all respect, it's not the question related to MicroStation VBA API, because API can be used both in normal VBA code (from module) or in class definition code. It's a developer decision how the code will be structured and if classed will be used or not. There are several situations where you have to create a class to use MicroStation VBA functionality (IPrimitiveCommandEvents and ILocateCommandEvents objects), but the most of MicroStation VBA macro can be written as normal module code.
I recommend to check general VBA tutorials like www.cpearson.com and also use Google to find articles about the difference between normal and class VBA modules.
With regards,
Jan
