yang686526

mtext height
mtext height
hallo
i do not understand how to interpret the height of mtext in the attached drawing correctly. it appears that the text height as shown in some of the mtext entities is very large e.g. values between 250 and 300. i am interpreting these stored in mm units. the result is that when i insert this into my application, huge text is being generated. what i am doing wrong - is there an additional scaling factor i need to take into account?
thanks
anton heymann
attached files
hello anton,
character height is calculated in drawing units. in autocad "text height" is treated as height of "a" symbol not the height of bounding box. coefficient to convert between these two heights depends on font metrics - it is different for different fonts.
in your case values 250 and 350 are normal without any additional scaling factor. could you explain more detail your problem?
best regards,
sergey z.
conversion
sergey
i am interpreting the height as being in the 'units' of the drawing, which in this case appears to be mm. so, i am inserting this text into our application as 250 or 300mm high (which is obviously too big). the question is then going to be - how do i convert the 'drawings units' and convert that to 'my' units e.g. mm?
thanks
anton
quote:
originally posted by aheymann
so, i am inserting this text into our application as 250 or 300mm high (which is obviously too big).
the text height in your drawing are commensurable quantity with others objects size. for example the width door is about 900 mm (is it normal?) and it is three text height.
possible you have problem with rendering text in your application. try to see extensions\exrender project as sample.
best regards,
sergey z.