Question on geometric transformations
I have an application where I would like to perform
calculations on a field's positions component after
geometric transformations have been applied. Is there
a way to force DX to update the positions by applying
the outstanding transformations before render time?
The attached network illustrates my question.
Thanks,
Ned Piburn
//
// time: Thu Jul 24 13:13:16 2003
//
// version: 3.2.0 (format), 4.2.0 (DX)
//
//
// MODULE main
// workspace: width = 482, height = 832
// layout: snap = 1, width = 35, height = 35, align = UL
//
macro main(
) -> (
) {
//
// node Construct[1]: x = 105, y = 175, inputs = 4, label = Construct
// input[1]: defaulting = 0, visible = 1, type = 16777224, value = {[0.,
0.]}
// input[2]: defaulting = 0, visible = 1, type = 16777224, value = {[0.02,
0.02]}
// input[3]: defaulting = 0, visible = 1, type = 8, value = [51,51]
//
main_Construct_1_out_1 =
Construct(
main_Construct_1_in_1,
main_Construct_1_in_2,
main_Construct_1_in_3,
main_Construct_1_in_4
) [instance: 1, cache: 1];
//
// node Color[1]: x = 105, y = 245, inputs = 5, label = Color
// input[2]: defaulting = 0, visible = 1, type = 32, value = "red"
//
main_Color_1_out_1 =
Color(
main_Construct_1_out_1,
main_Color_1_in_2,
main_Color_1_in_3,
main_Color_1_in_4,
main_Color_1_in_5
) [instance: 1, cache: 1];
//
// node Rotate[1]: x = 105, y = 315, inputs = 3, label = Rotate
// input[2]: defaulting = 0, visible = 1, type = 32, value = "z"
// input[3]: defaulting = 0, visible = 1, type = 5, value = 35.0
//
main_Rotate_1_out_1 =
Rotate(
main_Color_1_out_1,
main_Rotate_1_in_2,
main_Rotate_1_in_3
) [instance: 1, cache: 1];
//
// node Mark[1]: x = 105, y = 385, inputs = 2, label = Mark
// input[2]: defaulting = 0, visible = 1, type = 32, value = "positions"
//
main_Mark_1_out_1 =
Mark(
main_Rotate_1_out_1,
main_Mark_1_in_2
) [instance: 1, cache: 1];
//
// node Compute[1]: x = 105, y = 455, inputs = 2, label = Compute
// input[1]: defaulting = 0, visible = 0, type = 32, value = "($0.y >= 0.3)
? 1 : 0"
// expression: value = (a.y >= 0.3) ? 1 : 0
// name[2]: value = a
//
main_Compute_1_out_1 =
Compute(
main_Compute_1_in_1,
main_Mark_1_out_1
) [instance: 1, cache: 1];
//
// node Replace[1]: x = 0, y = 560, inputs = 4, label = Replace
// input[4]: defaulting = 0, visible = 1, type = 32, value = "flag"
//
main_Replace_1_out_1 =
Replace(
main_Compute_1_out_1,
main_Rotate_1_out_1,
main_Replace_1_in_3,
main_Replace_1_in_4
) [instance: 1, cache: 1];
//
// node Mark[2]: x = 0, y = 630, inputs = 2, label = Mark
// input[2]: defaulting = 0, visible = 1, type = 32, value = "flag"
//
main_Mark_2_out_1 =
Mark(
main_Replace_1_out_1,
main_Mark_2_in_2
) [instance: 2, cache: 1];
//
// node Include[1]: x = 0, y = 700, inputs = 6, label = Include
// input[2]: defaulting = 0, visible = 1, type = 5, value = 1.0
// input[3]: defaulting = 0, visible = 1, type = 5, value = 1.0
//
main_Include_1_out_1 =
Include(
main_Mark_2_out_1,
main_Include_1_in_2,
main_Include_1_in_3,
main_Include_1_in_4,
main_Include_1_in_5,
main_Include_1_in_6
) [instance: 1, cache: 1];
//
// node Image[1]: x = 35, y = 770, inputs = 49, label = Image
// input[1]: defaulting = 0, visible = 0, type = 67108863, value = "Image_1"
// input[4]: defaulting = 0, visible = 0, type = 1, value = 1
// input[5]: defaulting = 0, visible = 0, type = 8, value = [0.0636179
0.560944 0]
// input[6]: defaulting = 0, visible = 0, type = 8, value = [0.0636179
0.560944 3.55379]
// input[7]: defaulting = 0, visible = 0, type = 5, value = 2.7522
// input[8]: defaulting = 0, visible = 0, type = 1, value = 640
// input[9]: defaulting = 0, visible = 0, type = 5, value = 0.751
// input[10]: defaulting = 0, visible = 0, type = 8, value = [0 1 0]
// input[11]: defaulting = 1, visible = 0, type = 5, value = 42.3348
// input[12]: defaulting = 0, visible = 0, type = 1, value = 0
// input[14]: defaulting = 0, visible = 0, type = 1, value = 1
// input[15]: defaulting = 1, visible = 0, type = 32, value = "none"
// input[16]: defaulting = 1, visible = 0, type = 32, value = "none"
// input[17]: defaulting = 1, visible = 0, type = 1, value = 1
// input[18]: defaulting = 1, visible = 0, type = 1, value = 1
// input[19]: defaulting = 0, visible = 0, type = 1, value = 0
// input[29]: defaulting = 0, visible = 0, type = 3, value = 1
// input[30]: defaulting = 0, visible = 0, type = 16777248, value = {"X",
"Y", "Z"}
// input[41]: defaulting = 0, visible = 0, type = 32, value = "none"
// depth: value = 24
// window: position = (0.4109,0.5654), size = 0.5109x0.5098
// internal caching: 1
//
main_Image_1_out_1,
main_Image_1_out_2,
main_Image_1_out_3 =
Image(
main_Image_1_in_1,
main_Include_1_out_1,
main_Image_1_in_3,
main_Image_1_in_4,
main_Image_1_in_5,
main_Image_1_in_6,
main_Image_1_in_7,
main_Image_1_in_8,
main_Image_1_in_9,
main_Image_1_in_10,
main_Image_1_in_11,
main_Image_1_in_12,
main_Image_1_in_13,
main_Image_1_in_14,
main_Image_1_in_15,
main_Image_1_in_16,
main_Image_1_in_17,
main_Image_1_in_18,
main_Image_1_in_19,
main_Image_1_in_20,
main_Image_1_in_21,
main_Image_1_in_22,
main_Image_1_in_23,
main_Image_1_in_24,
main_Image_1_in_25,
main_Image_1_in_26,
main_Image_1_in_27,
main_Image_1_in_28,
main_Image_1_in_29,
main_Image_1_in_30,
main_Image_1_in_31,
main_Image_1_in_32,
main_Image_1_in_33,
main_Image_1_in_34,
main_Image_1_in_35,
main_Image_1_in_36,
main_Image_1_in_37,
main_Image_1_in_38,
main_Image_1_in_39,
main_Image_1_in_40,
main_Image_1_in_41,
main_Image_1_in_42,
main_Image_1_in_43,
main_Image_1_in_44,
main_Image_1_in_45,
main_Image_1_in_46,
main_Image_1_in_47,
main_Image_1_in_48,
main_Image_1_in_49
) [instance: 1, cache: 1];
//
// decorator Annotate pos=(280,245) size=189x82 style(Label), value =
<NULL>
// annotation user_begin: 131
// annotation user: Create a 50x50 mesh of
// annotation user: rectangles that form a square
// annotation user: from 0 to 1 in both X and Y
// annotation user: directions. Color it red and
// annotation user: rotate it 35 degrees.
// annotation user_end: <NULL>
// resource *decorator.alignment:XmALIGNMENT_BEGINNING
//
// decorator Annotate pos=(245,420) size=237x54 style(Label), value =
<NULL>
// annotation user_begin: 88
// annotation user: Mark the postions and create a scalar
// annotation user: field, called FLAG, where the value is
// annotation user: (y >= 0.3).
// annotation user_end: <NULL>
// resource *decorator.alignment:XmALIGNMENT_BEGINNING
//
// decorator Annotate pos=(210,665) size=235x110 style(Label), value
= <NULL>
// annotation user_begin: 215
// annotation user: Mark the FLAG field as DATA and use
// annotation user: INCLUDE to give us just the region
// annotation user: above 0.3. What I get is the region
// annotation user: of the original square that is
// annotation user: above 0.3. What I want is the
// annotation user: region of the rotated figure that
// annotation user: is above 0.3.
// annotation user_end: <NULL>
// resource *decorator.alignment:XmALIGNMENT_BEGINNING
//
// decorator Annotate pos=(0,0) size=467x159 style(Label),
font=huge_bold, value = <NULL>
// annotation user_begin: 325
// annotation user: This is a test network to look at the behavior of
// annotation user: applied geometric transforms. It confirms that
// annotation user: transforms are not applied until render time. I'm
// annotation user: looking for a way to force the position field to
// annotation user: be updated by the outstanding transformations so
// annotation user: that computations on the positions will produce
// annotation user: the expected result. -Ned Piburn
// annotation user_end: <NULL>
// resource *decorator.alignment:XmALIGNMENT_BEGINNING
// network: end of macro body
CacheScene(main_Image_1_in_1, main_Image_1_out_1, main_Image_1_out_2);
}
main_Construct_1_in_1 = {[0., 0.]};
main_Construct_1_in_2 = {[0.02, 0.02]};
main_Construct_1_in_3 = [51,51];
main_Construct_1_in_4 = NULL;
main_Construct_1_out_1 = NULL;
main_Color_1_in_2 = "red";
main_Color_1_in_3 = NULL;
main_Color_1_in_4 = NULL;
main_Color_1_in_5 = NULL;
main_Color_1_out_1 = NULL;
main_Rotate_1_in_2 = "z";
main_Rotate_1_in_3 = 35.0;
main_Rotate_1_out_1 = NULL;
main_Mark_1_in_2 = "positions";
main_Mark_1_out_1 = NULL;
main_Compute_1_in_1 = "($0.y >= 0.3) ? 1 : 0";
main_Compute_1_out_1 = NULL;
main_Replace_1_in_3 = NULL;
main_Replace_1_in_4 = "flag";
main_Replace_1_out_1 = NULL;
main_Mark_2_in_2 = "flag";
main_Mark_2_out_1 = NULL;
main_Include_1_in_2 = 1.0;
main_Include_1_in_3 = 1.0;
main_Include_1_in_4 = NULL;
main_Include_1_in_5 = NULL;
main_Include_1_in_6 = NULL;
main_Include_1_out_1 = NULL;
macro Image(
id,
object,
where,
useVector,
to,
from,
width,
resolution,
aspect,
up,
viewAngle,
perspective,
options,
buttonState = 1,
buttonUpApprox = "none",
buttonDownApprox = "none",
buttonUpDensity = 1,
buttonDownDensity = 1,
renderMode = 0,
defaultCamera,
reset,
backgroundColor,
throttle,
RECenable = 0,
RECfile,
RECformat,
RECresolution,
RECaspect,
AAenable = 0,
AAlabels,
AAticks,
AAcorners,
AAframe,
AAadjust,
AAcursor,
AAgrid,
AAcolors,
AAannotation,
AAlabelscale,
AAfont,
interactionMode,
title,
AAxTickLocs,
AAyTickLocs,
AAzTickLocs,
AAxTickLabels,
AAyTickLabels,
AAzTickLabels,
webOptions) -> (
object,
camera,
where)
{
ImageMessage(
id,
backgroundColor,
throttle,
RECenable,
RECfile,
RECformat,
RECresolution,
RECaspect,
AAenable,
AAlabels,
AAticks,
AAcorners,
AAframe,
AAadjust,
AAcursor,
AAgrid,
AAcolors,
AAannotation,
AAlabelscale,
AAfont,
AAxTickLocs,
AAyTickLocs,
AAzTickLocs,
AAxTickLabels,
AAyTickLabels,
AAzTickLabels,
interactionMode,
title,
renderMode,
buttonUpApprox,
buttonDownApprox,
buttonUpDensity,
buttonDownDensity) [instance: 1, cache: 1];
autoCamera =
AutoCamera(
object,
"front",
object,
resolution,
aspect,
[0,1,0],
perspective,
viewAngle,
backgroundColor) [instance: 1, cache: 1];
realCamera =
Camera(
to,
from,
width,
resolution,
aspect,
up,
perspective,
viewAngle,
backgroundColor) [instance: 1, cache: 1];
coloredDefaultCamera =
UpdateCamera(defaultCamera,
background=backgroundColor) [instance: 1, cache: 1];
nullDefaultCamera =
Inquire(defaultCamera,
"is null + 1") [instance: 1, cache: 1];
resetCamera =
Switch(
nullDefaultCamera,
coloredDefaultCamera,
autoCamera) [instance: 1, cache: 1];
resetNull =
Inquire(
reset,
"is null + 1") [instance: 2, cache: 1];
reset =
Switch(
resetNull,
reset,
0) [instance: 2, cache: 1];
whichCamera =
Compute(
"($0 != 0 || $1 == 0) ? 1 : 2",
reset,
useVector) [instance: 1, cache: 1];
camera = Switch(
whichCamera,
resetCamera,
realCamera) [instance: 3, cache: 1];
AAobject =
AutoAxes(
object,
camera,
AAlabels,
AAticks,
AAcorners,
AAframe,
AAadjust,
AAcursor,
AAgrid,
AAcolors,
AAannotation,
AAlabelscale,
AAfont,
AAxTickLocs,
AAyTickLocs,
AAzTickLocs,
AAxTickLabels,
AAyTickLabels,
AAzTickLabels) [instance: 1, cache: 1];
switchAAenable = Compute("$0+1",
AAenable) [instance: 2, cache: 1];
object = Switch(
switchAAenable,
object,
AAobject) [instance:4, cache: 1];
SWapproximation_options =
Switch(
buttonState,
buttonUpApprox,
buttonDownApprox) [instance: 5, cache: 1];
SWdensity_options =
Switch(
buttonState,
buttonUpDensity,
buttonDownDensity) [instance: 6, cache: 1];
HWapproximation_options =
Format(
"%s,%s",
buttonDownApprox,
buttonUpApprox) [instance: 1, cache: 1];
HWdensity_options =
Format(
"%d,%d",
buttonDownDensity,
buttonUpDensity) [instance: 2, cache: 1];
switchRenderMode = Compute(
"$0+1",
renderMode) [instance: 3, cache: 1];
approximation_options = Switch(
switchRenderMode,
SWapproximation_options,
HWapproximation_options) [instance: 7, cache: 1];
density_options = Switch(
switchRenderMode,
SWdensity_options,
HWdensity_options) [instance: 8, cache: 1];
renderModeString = Switch(
switchRenderMode,
"software",
"hardware")[instance: 9, cache: 1];
object_tag = Inquire(
object,
"object tag")[instance: 3, cache: 1];
annoted_object =
Options(
object,
"send boxes",
0,
"cache",
1,
"object tag",
object_tag,
"ddcamera",
whichCamera,
"rendering approximation",
approximation_options,
"render every",
density_options,
"button state",
buttonState,
"rendering mode",
renderModeString) [instance: 1, cache: 1];
RECresNull =
Inquire(
RECresolution,
"is null + 1") [instance: 4, cache: 1];
ImageResolution =
Inquire(
camera,
"camera resolution") [instance: 5, cache: 1];
RECresolution =
Switch(
RECresNull,
RECresolution,
ImageResolution) [instance: 10, cache: 1];
RECaspectNull =
Inquire(
RECaspect,
"is null + 1") [instance: 6, cache: 1];
ImageAspect =
Inquire(
camera,
"camera aspect") [instance: 7, cache: 1];
RECaspect =
Switch(
RECaspectNull,
RECaspect,
ImageAspect) [instance: 11, cache: 1];
switchRECenable = Compute(
"$0 == 0 ? 1 : (($2 == $3) && ($4 == $5)) ? ($1 == 1 ? 2 : 3) : 4",
RECenable,
switchRenderMode,
RECresolution,
ImageResolution,
RECaspect,
ImageAspect) [instance: 4, cache: 1];
NoRECobject, RECNoRerenderObject, RECNoRerHW, RECRerenderObject =
Route(switchRECenable, annoted_object);
Display(
NoRECobject,
camera,
where,
throttle) [instance: 1, cache: 1];
image =
Render(
RECNoRerenderObject,
camera) [instance: 1, cache: 1];
Display(
image,
NULL,
where,
throttle) [instance: 2, cache: 1];
WriteImage(
image,
RECfile,
RECformat) [instance: 1, cache: 1];
rec_where = Display(
RECNoRerHW,
camera,
where,
throttle) [instance: 1, cache: 0];
rec_image = ReadImageWindow(
rec_where) [instance: 1, cache: 1];
WriteImage(
rec_image,
RECfile,
RECformat) [instance: 1, cache: 1];
RECupdateCamera =
UpdateCamera(
camera,
resolution=RECresolution,
aspect=RECaspect) [instance: 2, cache: 1];
Display(
RECRerenderObject,
camera,
where,
throttle) [instance: 1, cache: 1];
RECRerenderObject =
ScaleScreen(
RECRerenderObject,
NULL,
RECresolution,
camera) [instance: 1, cache: 1];
image =
Render(
RECRerenderObject,
RECupdateCamera) [instance: 2, cache: 1];
WriteImage(
image,
RECfile,
RECformat) [instance: 2, cache: 1];
}
main_Image_1_in_1 = "Image_1";
main_Image_1_in_3 = "X24,,";
main_Image_1_in_4 = 1;
main_Image_1_in_5 = [0.0636179 0.560944 0];
main_Image_1_in_6 = [0.0636179 0.560944 3.55379];
main_Image_1_in_7 = 2.7522;
main_Image_1_in_8 = 640;
main_Image_1_in_9 = 0.751;
main_Image_1_in_10 = [0 1 0];
main_Image_1_in_11 = NULL;
main_Image_1_in_12 = 0;
main_Image_1_in_13 = NULL;
main_Image_1_in_14 = 1;
main_Image_1_in_15 = NULL;
main_Image_1_in_16 = NULL;
main_Image_1_in_17 = NULL;
main_Image_1_in_18 = NULL;
main_Image_1_in_19 = 0;
main_Image_1_in_20 = NULL;
main_Image_1_in_21 = NULL;
main_Image_1_in_22 = NULL;
main_Image_1_in_23 = NULL;
main_Image_1_in_25 = NULL;
main_Image_1_in_26 = NULL;
main_Image_1_in_27 = NULL;
main_Image_1_in_28 = NULL;
main_Image_1_in_29 = 1;
main_Image_1_in_30 = {"X", "Y", "Z"};
main_Image_1_in_31 = NULL;
main_Image_1_in_32 = NULL;
main_Image_1_in_33 = NULL;
main_Image_1_in_34 = NULL;
main_Image_1_in_35 = NULL;
main_Image_1_in_36 = NULL;
main_Image_1_in_37 = NULL;
main_Image_1_in_38 = NULL;
main_Image_1_in_39 = NULL;
main_Image_1_in_40 = NULL;
main_Image_1_in_41 = "none";
main_Image_1_in_42 = NULL;
main_Image_1_in_43 = NULL;
main_Image_1_in_44 = NULL;
main_Image_1_in_45 = NULL;
main_Image_1_in_46 = NULL;
main_Image_1_in_47 = NULL;
main_Image_1_in_48 = NULL;
main_Image_1_in_49 = NULL;
Executive("product version 4 2 0");
$sync
main();
