joachim/openwebrx-clone
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Now the waterfall will not fall out of the graph area!

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This commit is contained in:
ha7ilm 2016-08-11 22:18:46 +02:00
parent 0a09d31439
commit 5b360f86ea
1 changed files with 7 additions and 1 deletions
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8
htdocs/openwebrx.js
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@ -1961,6 +1961,7 @@ function mathbox_init()
mathbox_data_index = 0; //the index of the last empty line / the line to be overwritten mathbox_data_index = 0; //the index of the last empty line / the line to be overwritten
mathbox_data = new Float32Array(fft_size * mathbox_data_max_depth); mathbox_data = new Float32Array(fft_size * mathbox_data_max_depth);
mathbox_data_global_index = 0; mathbox_data_global_index = 0;
mathbox_correction_for_z = 0;
mathbox = mathBox({ mathbox = mathBox({
plugins: ['core', 'controls', 'cursor', 'stats'], plugins: ['core', 'controls', 'cursor', 'stats'],
@ -2011,10 +2012,15 @@ function mathbox_init()
//var remap = function (v) { return Math.sqrt(.5 + .5 * v); }; //var remap = function (v) { return Math.sqrt(.5 + .5 * v); };
var remap = function(x,z,t) var remap = function(x,z,t)
{ {
var zAdd;
var currentTimePos = mathbox_data_global_index/(fft_fps*1.0); var currentTimePos = mathbox_data_global_index/(fft_fps*1.0);
zAdd = -(t-currentTimePos)/10; zAdd = (-(t-currentTimePos)/10) - mathbox_correction_for_z;
if(zAdd<-0.2) { mathbox_correction_for_z += -zAdd; zAdd=0; }
if(zAdd>0.2) { mathbox_correction_for_z += zAdd; zAdd=0; }
var xIndex = Math.trunc(((x+1)/2.0)*fft_size); //x: frequency var xIndex = Math.trunc(((x+1)/2.0)*fft_size); //x: frequency
var zIndex = Math.trunc(z*(mathbox_data_max_depth-1)); //z: time var zIndex = Math.trunc(z*(mathbox_data_max_depth-1)); //z: time
var realZIndex = mathbox_get_data_line(zIndex); var realZIndex = mathbox_get_data_line(zIndex);