Hello all,
I'm about to start a project and wanted to ask on this list your ideas on how to approach it. I would like to get a dynamic string/symbol(with spaces) to be rendered with text3d as if it is following a spline. Where the baseline of each letter is a tangent to the spline curve. I'd like to be able to move the control points of this spline curve and change the text (including the number of letters) dynamically.
My first thought is to build a pmpd chain that will act as the "spline" then use tLia objects to control the position and rotation of individual letters (as separate text3d objects) Some issues are how to make a pmpd chain more like a spline, I guess having no flextion in the links? Spacing the letters could also be a challange.
Any other ideas of how to approach this? How intensive is the math for calculating the position of the letters based on some real spline-curve equation? Any examples how I may go about this method?
Any opions would be welcomed.
As for text3d in general It would be very very nice to be able to have support for:
* Text boxes that wrap the contents, by character, or by word, or with "-". A special line-break character{,sequence} would be nice too. You just define the bounding box for the text in gem units (or rows+columns) and it goes from there. Basically giving text3d the ability to manage multiple lines of text.
* Jusification within this box (left right centre flush)
* text following a spline? ;)
Thanks all!
Ben
On Apr 6, 2004, at 12:56 PM, B. Bogart wrote:
Any other ideas of how to approach this? How intensive is the math for calculating the position of the letters based on some real spline-curve equation? Any examples how I may go about this method?
How about the spline_path object inside a [until] loop? You could have arrays for translation, rotation and the text (not entirely sure how to do the latter). Each master GEM tick would trigger the repeat which would run through the spline path and put the letter in the right spot. I just whipped up a basic patch based on the spline_path example in 02.advanced that you can find at the end of this mail. You need to use the .tab files in examples/data/ for it to work.
Any opions would be welcomed.
As for text3d in general It would be very very nice to be able to have support for:
- Text boxes that wrap the contents, by character, or by word, or with
"-". A special line-break character{,sequence} would be nice too. You just define the bounding box for the text in gem units (or rows+columns) and it goes from there. Basically giving text3d the ability to manage multiple lines of text.
- Jusification within this box (left right centre flush)
I think these can be done in abstractions for the most part, or at the very least an attempt should be made to do them that way. That's really the way Pd was designed you know. ;)
- text following a spline? ;)
This starts getting into the question of what Pd/GEM is really 'good' at doing. I don't think really precise splined text is something GEM is particularly suited to doing. For one thing the user interface for defining the spline would be what? The array object doesn't really give you enough response for information, functionality and performance to be all that useful (it needs to at least need to give coordinate info about which element you are acting on). So that leaves something like entering in lines of text into a file or trying to algorithmically fill an array at runtime. The latter is potentially interesting while the former just seems like a royal pain in the ass.
cgc
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B. Bogart -
chris clepper