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- make duration of view change configurable (default 0.2 seconds)

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- extract some constants
This commit is contained in:
mfranz 2007-02-11 16:56:15 +00:00
parent 420b9bff99
commit dfb4316b43
1 changed files with 20 additions and 9 deletions
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29
Nasal/dynamic_view.nas
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@ -27,13 +27,13 @@
#
# The following commands move smoothly to a fixed view position and back.
# All values are relative to aircraft origin (absolute), not relative to
# the default cockpit view position. The field-of-view argument is optional.
# the default cockpit view position. The speed and field-of-view argument
# is optional.
#
# dynamic_view.lookat(hdg, pitch, roll, x, y, z [, fov=55]);
# dynamic_view.lookat(hdg, pitch, roll, x, y, z [, speed=0.2 [, fov=55]]);
# dynamic_view.resume();
var sin = func(a) { math.sin(a * math.pi / 180.0) }
var cos = func(a) { math.cos(a * math.pi / 180.0) }
var sigmoid = func(x) { 1 / (1 + math.exp(-x)) }
@ -55,6 +55,12 @@ var normdeg = func(a) {
var FREEZE_DURATION = 2;
var BLEND_SPEED = 0.2;
# Class that reads a property value, applies factor & offset, clamps to min & max,
# and optionally lowpass filters.
#
@ -170,6 +176,7 @@ var ViewManager = {
# "lookat" blending
m.blendN = props.globals.getNode("/sim/view/dynamic/blend", 1);
m.blendN.setDoubleValue(0);
m.blendspeed = BLEND_SPEED;
m.frozen = 0;
if (props.globals.getNode("rotors", 0) != nil) {
@ -232,7 +239,7 @@ var ViewManager = {
me.z_axis.apply(me.z);
me.fov_axis.apply(me.fov);
},
lookat : func(heading, pitch, roll, x, y, z, fov = 0) {
lookat : func(heading, pitch, roll, x, y, z, speed, fov) {
me.target_heading = me.heading_axis.static(heading);
me.target_pitch = me.pitch_axis.static(pitch);
me.target_roll = me.roll_axis.static(roll);
@ -240,10 +247,14 @@ var ViewManager = {
me.target_y = me.y_axis.static(y);
me.target_z = me.z_axis.static(z);
me.target_fov = me.fov_axis.static(fov);
interpolate(me.blendN, 1, 0.2);
me.blendspeed = speed;
me.blendN.setValue(0);
interpolate(me.blendN, 1, me.blendspeed);
},
resume : func {
interpolate(me.blendN, 0, 0.2);
interpolate(me.blendN, 0, me.blendspeed);
me.blendspeed = BLEND_SPEED;
},
freeze : func {
if (!me.frozen) {
@ -256,7 +267,7 @@ var ViewManager = {
me.target_fov = me.fov;
me.blendN.setDoubleValue(1);
}
me.frozen = me.elapsedN.getValue() + 2;
me.frozen = me.elapsedN.getValue() + FREEZE_DURATION;
},
unfreeze : func {
me.frozen = 0;
@ -352,8 +363,8 @@ var reset = func {
view_manager.reset();
}
var lookat = func(h, p, r, x, y, z, f = 55) {
view_manager.lookat(h, p, r, x, y, z, f);
var lookat = func(h, p, r, x, y, z, s = BLEND_SPEED, f = 55) {
view_manager.lookat(h, p, r, x, y, z, s, f);
}
var resume = func {