diff options
author | Jonathan Wilkes <jancsika1@users.sourceforge.net> | 2010-08-25 00:12:22 +0000 |
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committer | Jonathan Wilkes <jancsika1@users.sourceforge.net> | 2010-08-25 00:12:22 +0000 |
commit | 2f615ffbf13571a928856b8207d1ea215e857e3f (patch) | |
tree | fba96137a8474e9dce1555095a52990d5cece732 /doc/pddp/all_about_expr_if.pd | |
parent | b98e2bc00355aae29d3e67ca41eda8cedfe0100d (diff) |
Revised and added to all_about help patches
svn path=/trunk/; revision=13941
Diffstat (limited to 'doc/pddp/all_about_expr_if.pd')
-rw-r--r-- | doc/pddp/all_about_expr_if.pd | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/doc/pddp/all_about_expr_if.pd b/doc/pddp/all_about_expr_if.pd new file mode 100644 index 00000000..b1cd36c6 --- /dev/null +++ b/doc/pddp/all_about_expr_if.pd @@ -0,0 +1,64 @@ +#N canvas 0 0 448 500 10; +#X obj 1 1 cnv 15 445 20 empty \$0-pddp.cnv.header expr_if 20 10 1 +18 -261106 -33289 0; +#X obj 407 2 pddp/pddplink http://puredata.info/dev/pddp -text pddp +; +#X floatatom 23 315 5 0 0 0 - - -; +#X floatatom 23 266 5 0 0 0 - - -; +#X obj 374 374 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 0 +10; +#X floatatom 23 441 5 0 0 0 - - -; +#X floatatom 23 376 5 0 0 0 - - -; +#X obj 83 441 print; +#X floatatom 374 353 5 0 0 0 - - -; +#X obj 23 400 expr if($f2 != 0 \, if($f1 % 13 != 0 \, random($f1 - +$f2 * 0.5 \, $f1 + $f2 * 0.5) \, $f1) \, $f1 % 60); +#X text 20 93 b) an expression to evaluate if the condition is true +\, and; +#X text 20 78 a) the condition \,; +#X text 20 37 The [expr] \, [expr~] \, and [fexpr~] objects allow you +to build a conditional statement using the "expr if" syntax. It is +made up of three parts \, enclosed in parentheses:; +#X text 20 126 Each part is separated by a comma.; +#X text 20 108 c) an expression to evaluate if the condition is false. +; +#X text 20 239 c) if the condition is false \, the number 20 is output. +; +#X text 20 340 You can nest other functions within the if function +\, including the if function itself.; +#X text 20 157 By scrolling the number box below you can see the [expr +if] function in action. When a number is received at the inlet:; +#X text 20 189 a) the condition "$f1 < 20" checks if the input is less +than twenty.; +#X text 20 219 b) if true \, the value is subtracted from twenty and +output.; +#X obj 1 478 cnv 15 445 20 empty \$0-pddp.cnv.footer empty 20 12 0 +14 -233017 -33289 0; +#N canvas 44 246 494 344 META 0; +#X text 12 85 LIBRARY PDDP; +#X text 12 45 KEYWORDS; +#X text 12 5 GENRE all_about_pd; +#X text 12 25 NAME expr expr~ fexpr~; +#X text 12 105 HELP_PATCH_AUTHORS Dave Sabine \, May 5 \, 2003 . Jonathan +Wilkes revised the patch to conform to the PDDP template for Pd version +0.42.; +#X text 12 65 DESCRIPTION an explanation of the "if" function from +sly and the expr family stone; +#X restore 392 480 pd META; +#N canvas 9 355 428 136 Related_objects 0; +#X obj 1 1 cnv 15 425 20 empty \$0-pddp.cnv.subheading empty 3 12 0 +14 -261106 -33289 0; +#X text 7 2 [expr] if- Related Objects; +#X obj 22 42 moses; +#X obj 72 42 select; +#X obj 132 42 spigot; +#X restore 103 480 pd Related_objects; +#X obj 6 480 pddp/pddplink pddp/help.pd -text help; +#X obj 23 290 expr if($f1 < 50 \, 50-$f1 \, 50); +#X connect 3 0 24 0; +#X connect 4 0 9 1; +#X connect 6 0 9 0; +#X connect 8 0 4 0; +#X connect 9 0 5 0; +#X connect 9 0 7 0; +#X connect 24 0 2 0; |