Canvas Zooming Using Scaling tcl tk

Using the tcl/tk canvas that ships with it as standard, and no hardware acceleration or magical code, this demo shows how to do a sort of zooming using just scaling all objects that are on the canvas. I bound the zooming in and out to F3 and F4 and you can watch as I view objects and zoom as far as floating point precision allows me to. The limits are indeed quite large and gives a very neat cool beans effect on modern regular machines (2008+).

The vector font is from here: http://wiki.tcl.tk/27638

The documentation for the canvas (reference manual) is here: http://tcl.tk/man/tcl8.5/TkCmd/canvas.htm

SupremeXeN: http://supremexen.com/

Download it here: http://supremexen.com/pub/canvas-draw-2011-08-29--13-11.zip

The editor milkjack that hilites tcltk code and edits text files is available here:
http://supremexen.com/pub/milkjack-2011-09-22--12-32.zip

Category:

Science & Technology

Tags:

• tcl
• tk
• canvas
• zooming
• scaling
• software

[atheistsam]

Nice demo and excellent musical score! What editor were you using? I like the ==title hooks.

[xrocode]

@atheistsam Hey thanks! The editor was naiia, which is like milkjack. milkjack works on linux and windows and edits texts files as well as tcl tk files with a few added hooks to do hiliting and some other things. Also has search slots (many text searches possible).

[xrocode]

@atheistsam I added the link to the description for the editor.

[xrocode]

Btw guys I am coming to India for a few months from Canada. I will be there in November around Lucknow region.

[MrXStark]

xrocode bhai, TCL/TK kaha use kar rahe ho? :) Mast app.

[xrocode]

@MrXStark  Thanks bhai!

[xrocode]

@arjunitp Ok I have uploaded it to SupremeXeN enjoy it! All the code is there and you can edit it and run it. It has the interpreter as well, everything is included in the file: canvas-draw-2011-08-29--13-11.­zip

[arjunitp]

can you please share the code for this to play aorund and experiment it with different scenarios ??

[MrXStark]

my god Himesh reshammiya