| Article | 41023383 |
| Type | HowTo |
| Product | Engine |
| Version | 4.1.6.1028 |
| Date Added | 1/14/2004 |
| Submitted by | Stavros |
| Keywords |
Converting a drawing units from inches to metric and vise versa.
What I have to do if I want to insert a drawing which is in engineering mode in to a drawing which is in metric or vise versa?
VectorDraw uses the following form:
if the lunits sytem variable is Engineering 1 D.U. = 1 inch
if the lunits sytem variable is decimal then depend from the applicaton so may be:
or 1 D.U. = 1 mm
or 1 D.U. = 1 cm
or 1 D.U. = 1 meter etc
For the conversion between inches and millimiters we have : 1 inch = 25.4 mm
For the conversion between inches and centimeters we have :1 inch = 2.54 cm
For the conversion between inches and meters we have that :1 inch = 0.254 meters
In simple words :
If you want to insert a drawing which is in decimal(1du = 1 mm) in to a drawing which is Engineering
then we must scale the drawing with the value of 1.0 / 25.4= 0.03937007
If you want to insert a drawing which is in Engineering (1du = 1 inch) in to a drawing which is decimal(1du = 1 mm)
then we must scale the drawing with the value of 25.4
If you want to insert a drawing which is in decimal(1du = 1 centimeter) in to a drawing which is Engineering
then we must scale the drawing with the value of 1.0 / 2.54= 0.3937007
If you want to insert a drawing which is in Engineering (1du = 1 inch) in to a drawing which is decimal(1du = 1 centimeter)
then we must scale the drawing with the value of 2.54
If you want to insert a drawing which is in decimal(1du = 1 meter) in to a drawing which is Engineering
then we must scale the drawing with the value of 1.0 / 0.254= 3.937007
If you want to insert a drawing which is in Engineering (1du = 1 inch) in to a drawing which is decimal(1du = 1 meter)
then we must scale the drawing with the value of 0.254
The scale of the drawing can be done :
after the open command using the cmdscale of commandaction. CmdScale("All",Array(0,0,0),scalefactor)
or CmdInsert(BlockFilename,Array(0,0,0),scalefactor,scalefactor,0.0) to insert a drawing in to an existing one.