joachim/openwebrx-clone
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Trying to do some smooth movement

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This commit is contained in:
ha7ilm 2016-08-10 14:54:56 +02:00
parent 60b873fd0e
commit ea9bf58efe
1 changed files with 11 additions and 6 deletions
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17
htdocs/openwebrx.js
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@ -1787,6 +1787,7 @@ var mathbox_shift = function()
if(mathbox_data_current_depth < mathbox_data_max_depth) mathbox_data_current_depth++;
if(mathbox_data_index+1>=mathbox_data_max_depth) mathbox_data_index = 0;
else mathbox_data_index++;
mathbox_data_global_index++;
}
var mathbox_clear_data = function()
@ -1959,6 +1960,7 @@ function mathbox_init()
mathbox_data_current_depth = 0; //how many lines are in the buffer currently
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_global_index = 0;
mathbox = mathBox({
plugins: ['core', 'controls', 'cursor', 'stats'],
@ -2009,12 +2011,14 @@ function mathbox_init()
//var remap = function (v) { return Math.sqrt(.5 + .5 * v); };
var remap = function(x,z)
var remap = function(x,z,t)
{
var currentTimePos = mathbox_data_global_index/(fft_fps*1.0);
zAdd = -(t-currentTimePos);
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 realZIndex = mathbox_get_data_line(zIndex);
if(!mathbox_data_index_valid(zIndex)) return {y: undefined, dBValue: undefined };
if(!mathbox_data_index_valid(zIndex)) return {y: undefined, dBValue: undefined, zAdd: 0 };
//if(realZIndex>=(mathbox_data_max_depth-1)) console.log("realZIndexundef", realZIndex, zIndex);
var index = Math.trunc(xIndex + realZIndex * fft_size);
/*if(mathbox_data[index]==undefined) console.log("Undef", index, mathbox_data.length, zIndex,
@ -2027,14 +2031,15 @@ function mathbox_init()
else y = (dBValue-waterfall_min_level)/(waterfall_max_level-waterfall_min_level);
mathbox_dbg = { dbv: dBValue, indexval: index, mbd: mathbox_data.length, yval: y };
if(!y) y=0;
return {y: y, dBValue: dBValue};
return {y: y, dBValue: dBValue, zAdd: 0};
}
var points = view.area({
expr: function (emit, x, z, i, j, t) {
var y;
if((y=remap(x,z).y)==undefined) return;
emit(x, y, z);
remapResult=remap(x,z,t);
if((y=remapResult.y)==undefined) return;
emit(x, y, z+remapResult.zAdd);
},
width: 32,
height: 32,
@ -2045,7 +2050,7 @@ function mathbox_init()
var colors = view.area({
expr: function (emit, x, z, i, j, t) {
var dBValue;
if((dBValue=remap(x,z).dBValue)==undefined) return;
if((dBValue=remap(x,z,t).dBValue)==undefined) return;
var color=waterfall_mkcolor(dBValue);
var b = (color&0xff)/255.0;
var g = ((color&0xff00)>>8)/255.0;