/**
* @ingroup VuoTransform
* Start with an object pointing rightward (increasing X axis).
* This function returns a unit vector representing the direction
* a rightward-pointing object (+x axis) would be pointing after being transformed by @c transform.
*/
VuoPoint3d VuoTransform_getDirection(const VuoTransform transform)
{
// Make a new transform with only the rotational component.
VuoTransform r;
if (transform.type == VuoTransformTypeEuler)
r = VuoTransform_makeEuler(VuoPoint3d_make(0,0,0), transform.rotationSource.euler, VuoPoint3d_make(1,1,1));
else
r = VuoTransform_makeQuaternion(VuoPoint3d_make(0,0,0), transform.rotationSource.quaternion, VuoPoint3d_make(1,1,1));
float m[16];
VuoTransform_getMatrix(r, m);
return VuoTransform_transformPoint(m, VuoPoint3d_make(1,0,0));
}
VuoOutputData(VuoTransform) transform,
VuoOutputData(VuoPoint3d) palmVelocity,
VuoOutputData(VuoPoint3d) wristPosition,
VuoOutputData(VuoReal) sphereRadius,
VuoOutputData(VuoPoint3d) sphereCenter,
VuoOutputData(VuoReal) pinchAmount,
VuoOutputData(VuoReal) grabAmount,
VuoOutputData(VuoBoolean) isLeftHand,
VuoOutputData(VuoReal) timeVisible,
VuoOutputData(VuoReal) confidence,
VuoOutputData(VuoList_VuoLeapPointable) fingers
)
{
*id = hand.id;
VuoPoint3d scale = VuoPoint3d_make(hand.palmWidth, hand.palmWidth, hand.palmWidth);
*transform = VuoTransform_makeQuaternion(hand.palmPosition, hand.rotation, scale);
*palmVelocity = hand.palmVelocity;
*wristPosition = hand.wristPosition;
*sphereRadius = hand.sphereRadius;
*sphereCenter = hand.sphereCenter;
*pinchAmount = hand.pinchAmount;
*grabAmount = hand.grabAmount;
*isLeftHand = hand.isLeftHand;
*timeVisible = hand.timeVisible;
*confidence = hand.confidence;
*fingers = hand.fingers ? hand.fingers : VuoListCreate_VuoLeapPointable();
}
#include "node.h"
VuoModuleMetadata({
"title" : "Make Targeted Spotlight",
"keywords" : [ "draw", "opengl", "scenegraph", "graphics", "directional", "lighting", "point", "source" ],
"version" : "1.0.0",
"node": {
"exampleCompositions" : [
"AimFlashlight.vuo",
"CompareLights.vuo"
]
}
});
void nodeEvent
(
VuoInputData(VuoColor,{"default":{"r":1.,"g":1.,"b":1.,"a":1.}}) color,
VuoInputData(VuoReal, {"default":1.0, "suggestedMin":0., "suggestedMax":1., "suggestedStep":0.1}) brightness,
VuoInputData(VuoPoint3d, {"default":{"x":0.,"y":0.,"z":1.}, "suggestedStep":{"x":0.1,"y":0.1,"z":0.1}}) position,
VuoInputData(VuoPoint3d, {"default":{"x":0.,"y":0.,"z":-1.}, "suggestedStep":{"x":0.1,"y":0.1,"z":0.1}}) target,
VuoInputData(VuoReal, {"default":30., "suggestedMin":0., "suggestedMax":180., "suggestedStep":15.}) cone,
VuoInputData(VuoReal, {"default":10., "suggestedMin":0., "suggestedStep":0.1}) range,
VuoInputData(VuoReal, {"default":0.9, "suggestedMin":0., "suggestedMax":1., "suggestedStep":0.1}) sharpness,
VuoOutputData(VuoSceneObject) object
)
{
VuoPoint4d quaternion = VuoTransform_quaternionFromVectors(VuoPoint3d_make(1,0,0), VuoPoint3d_subtract(target, position));
VuoTransform transform = VuoTransform_makeQuaternion(position, quaternion, VuoPoint3d_make(1,1,1));
*object = VuoSceneObject_makeSpotlight(color, brightness, transform, cone*M_PI/180., range, sharpness);
}
/**
* @ingroup VuoTransform
* Decodes the JSON object @c js to create a new value.
*
* @eg{"identity"}
* @eg{
* {
* "quaternionRotation" = [0,0,0,1],
* "translation" = [0,0,0],
* "scale" = [1,1,1]
* }
* }
* @eg{
* {
* "eulerRotation" = [0,0,0],
* "translation" = [0,0,0],
* "scale" = [1,1,1]
* }
* }
*/
VuoTransform VuoTransform_valueFromJson(json_object *js)
{
VuoTransform t = VuoTransform_makeIdentity();
json_object *o = NULL;
if (json_object_object_get_ex(js, "target", &o))
{
VuoPoint3d target;
target.x = json_object_get_double(json_object_array_get_idx(o,0));
target.y = json_object_get_double(json_object_array_get_idx(o,1));
target.z = json_object_get_double(json_object_array_get_idx(o,2));
VuoPoint3d position = VuoPoint3d_make(0,0,0);
if (json_object_object_get_ex(js, "translation", &o))
{
position.x = json_object_get_double(json_object_array_get_idx(o,0));
position.y = json_object_get_double(json_object_array_get_idx(o,1));
position.z = json_object_get_double(json_object_array_get_idx(o,2));
}
VuoPoint3d upDirection = VuoPoint3d_make(0,1,0);
if (json_object_object_get_ex(js, "upDirection", &o))
{
upDirection.x = json_object_get_double(json_object_array_get_idx(o,0));
upDirection.y = json_object_get_double(json_object_array_get_idx(o,1));
upDirection.z = json_object_get_double(json_object_array_get_idx(o,2));
}
return VuoTransform_makeFromTarget(position, target, upDirection);
}
if (json_object_object_get_ex(js, "quaternionRotation", &o))
{
t.type = VuoTransformTypeQuaternion;
VuoPoint4d q;
q.x = json_object_get_double(json_object_array_get_idx(o,0));
q.y = json_object_get_double(json_object_array_get_idx(o,1));
q.z = json_object_get_double(json_object_array_get_idx(o,2));
q.w = json_object_get_double(json_object_array_get_idx(o,3));
t = VuoTransform_makeQuaternion(VuoPoint3d_make(0,0,0), q, VuoPoint3d_make(0,0,0));
}
else if (json_object_object_get_ex(js, "eulerRotation", &o))
{
t.type = VuoTransformTypeEuler;
VuoPoint3d e;
e.x = json_object_get_double(json_object_array_get_idx(o,0));
e.y = json_object_get_double(json_object_array_get_idx(o,1));
e.z = json_object_get_double(json_object_array_get_idx(o,2));
t = VuoTransform_makeEuler(VuoPoint3d_make(0,0,0), e, VuoPoint3d_make(0,0,0));
}
if (json_object_object_get_ex(js, "translation", &o))
{
t.translation.x = json_object_get_double(json_object_array_get_idx(o,0));
t.translation.y = json_object_get_double(json_object_array_get_idx(o,1));
t.translation.z = json_object_get_double(json_object_array_get_idx(o,2));
}
if (json_object_object_get_ex(js, "scale", &o))
{
t.scale.x = json_object_get_double(json_object_array_get_idx(o,0));
t.scale.y = json_object_get_double(json_object_array_get_idx(o,1));
t.scale.z = json_object_get_double(json_object_array_get_idx(o,2));
}
return t;
}
* @file
* vuo.transform.make.quaternion node implementation.
*
* @copyright Copyright © 2012–2014 Kosada Incorporated.
* This code may be modified and distributed under the terms of the MIT License.
* For more information, see http://vuo.org/license.
*/
#include "node.h"
VuoModuleMetadata({
"title" : "Make Quaternion Transform",
"keywords" : [ "homogenous", "xyzw", "translation", "rotation", "scale", "shift", "move", "position",
"angle", "axis", "size", "grow", "shrink" ],
"version" : "1.0.0",
"node": {
"exampleCompositions" : [ ]
}
});
void nodeEvent
(
VuoInputData(VuoPoint3d, {"default":{"x":0,"y":0,"z":0}}) translation,
VuoInputData(VuoPoint4d, {"default":{"x":0,"y":0,"z":0,"w":1}}) rotation,
VuoInputData(VuoPoint3d, {"default":{"x":1,"y":1,"z":1}}) scale,
VuoOutputData(VuoTransform) transform
)
{
*transform = VuoTransform_makeQuaternion(translation, rotation, scale);
}
