Converter tables

From Vectorlab

Common conversion tables for various units. To be expanded.

[edit] Conversions

1 inch (in)	25.4 mm
1 foot (ft)	12 in	30.48 cm
1 yard (yd)	3 ft	91.44 cm
1 mil	0,001 in	0,0254 mm
1 ft	0,3048 m	304,8 mm
1 mm	0.039370 in	1/25,4 in
Points
1 point	1/72 in	1/1828,8 mm
1 point	1/(25.4*72) mm	0,000547 mm
1 in	72 points
12 points	1 pica
6 pica	1 in

[edit] UPI (Units Per Inches)

A user can set the document units to any value, including custom ones, thus an environment check might be necessary for correct retrival of dimensions and further usage within VectorScript.

current unit to inches	x := x / upi
current unit to mm	x := x / upi * 25,4
mm to current unit	x := x * upi / 25,4

Available routines for checking the current units settings are:

• GetUnits returns many unit's settings, including UPI
• GetPrefReal(152) returns UPI.

Examples

if document units are inches	GetPrefReal(152) = 1
if document units are feets	GetPrefReal(152) = 0.08333333333...
if document units are yards	GetPrefReal(152) = 0.02777777777...
if document units are miles	GetPrefReal(152) = 1.578282828283e-05...
if document units are metres	GetPrefReal(152) = 0.0254
if document units are centimeters	GetPrefReal(152) = 2.54
if document units are millimeters	GetPrefReal(152) = 25.4

[edit] Routines that require/return specific units values

Some VectorScript routines need or return values in a defined unit and a conversion from the current unit settings to inches or millimeters might be needed:

[edit] returning mm

• GetObjectVariableReal( h: HANDLE; index: INTEGER): REAL;

[edit] requesting mm

• OffsetPoly(hPoly: HANDLE; dist: REAL): HANDLE;

[edit] returning in

[edit] page in

• GetMarker( h:HANDLE; VAR start:BOOLEAN; VAR END:BOOLEAN; VAR style:INTEGER; VAR size:REAL ); Size is always page inches.
• FMarker( VAR style:INTEGER; VAR size:REAL; VAR ang:INTEGER ); Size is always page inches.

[edit] real world in

• GetTexBitFeatureSize( textureBitmap: HANDLE ):REAL;
• GetTexSpace2DOffset( textureSpace: HANDLE; VAR offsetU: REAL; VAR offsetV: REAL );
• GetTexBitFeatureSize( textureBitmap: HANDLE ):REAL;
• GetTextureSize( texture: HANDLE ):REAL;

[edit] requesting in

[edit] page in

• SetLScale( h:HANDLE; Scale: REAL);
• SetScale( actualSize: REAL );

[edit] real world in

• SetTexBitFeatureSize( textureBitmap: HANDLE;  featureSize: REAL);
• SetTexSpace2DOffset( textureSpace: HANDLE; offsetU: REAL; offsetV: REAL);
• SetTextureSize( texture: HANDLE; newSize: REAL);

[edit] See also

• DPI dots per inches
• Image resolution
• Printing type
• Typographic unit