Delauney

C

ceaser

Active Member
Licensed User
Hi Agraham & Klaus

I am attaching the part of my survey program where one can calculate volumes of stockpiles.

The only problem that I have with the DLL, is that it draws triangles to a point 0,0. Any solutions?

Thanks
Michael
 
klaus

klaus

Expert
Licensed User
Longtime User
Hi Michael,

Here you are.

There were two problems:
- in the reading routine Menu3_Click you read the first entry in the file but you didn't treat it
- the Number variable began with 1 and on other places you began with 0,
but as in the reading routine you began with 1 the coordinates of point(0) were 0 .
B4X: 
[SIZE=2][FONT=Courier New][COLOR=#008000][SIZE=2][FONT=Courier New][COLOR=#008000][SIZE=2][FONT=Courier New][COLOR=#008000]' Number=0 :MinY=9E99 :MaxY=-9E99 :MinX=9E99 :MaxX=-9E99 :MinZ=9E99 :MaxZ=-9E99[/COLOR][/FONT][/SIZE]
[/COLOR][/FONT][/SIZE][/COLOR][/FONT][/SIZE][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2]Number=-[/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]1[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2] :MinY=[/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]9E99[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2] :MaxY=-[/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]9E99[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2] :MinX=[/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]9E99[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2] :MaxX=-[/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]9E99[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2] :MinZ=[/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]9E99[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2] :MaxZ=-[/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]9E99[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#008000][FONT=Courier New][SIZE=2][COLOR=#008000][FONT=Courier New][SIZE=2][COLOR=#008000]'KC[/COLOR][/SIZE][/FONT]
[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff]FileOpen[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2](c2,OpenDialog1.File,[/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]cRead[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2]) [/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#008000][FONT=Courier New][SIZE=2][COLOR=#008000][FONT=Courier New][SIZE=2][COLOR=#008000]'opens the specified file[/COLOR][/SIZE][/FONT]
[SIZE=2][FONT=Courier New][COLOR=#008000]' s = FileRead(c2) [COLOR=red]this one is not treated[/COLOR][/COLOR][/FONT][/SIZE]
[COLOR=#008000][SIZE=2][FONT=Courier New]' Do Until s = EOF 'Read the txt items until end of file.[/FONT][/SIZE][/COLOR]
[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#008000][FONT=Courier New][SIZE=2][COLOR=#008000][FONT=Courier New][SIZE=2][COLOR=#008000]' s = FileRead(c2)[/COLOR][/SIZE][/FONT]
[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#008000][FONT=Courier New][SIZE=2][COLOR=#008000][FONT=Courier New][SIZE=2][COLOR=#008000]' If Not(s ="@eof@") Then 'checks if it is the last entry of the file[/COLOR][/SIZE][/FONT]
[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#008000][FONT=Courier New][SIZE=2][COLOR=#008000][FONT=Courier New][SIZE=2][COLOR=#008000]' cdrs()=StrSplit(s,",")[/COLOR][/SIZE][/FONT]
[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#008000][FONT=Courier New][SIZE=2][COLOR=#008000][FONT=Courier New][SIZE=2][COLOR=#008000]' If cdrs(0)<>"" AND cdrs(1)<>"" AND cdrs(2)<>"" Then[/COLOR][/SIZE][/FONT]
[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#008000][FONT=Courier New][SIZE=2][COLOR=#008000][FONT=Courier New][SIZE=2][COLOR=#008000]' Number=Number+1  here Number becomes 0 the first time[/COLOR][/SIZE][/FONT]
[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT]

I attached the modified program, the modified lines have 'KC as comment at the end.

Pretty nice program !

Best regards.
 
Last edited:
agraham

agraham

Expert
Licensed User
Longtime User
Michael. I think you missed the difference between the Points() and the CooOrds() arrays. Points was meant to hold real world x,y,z and CoOrds the screen points. You are scaling the the Points() array when you load it and using the PointsToScreen Sub, which is just a one to one copy, and so are losing your real world valuues. The D2D.PointsToScreen does work but the X,Y parameters to it are the integer Screen max and min values, not the real world ones. It scales the real world values in Points to Screen values in CoOrds leaving Points unscaled so you can do real world calculations using those Points() values.

You should call D2DPointsToScreen at about line 107 in Stock.bas instead of doing the scaling of Points() there and Sub PlotPoints, and any other screen plotting, should use CoOrds().

EDIT :- Line 134 in Klaus' modified version
 
Last edited:
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