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allow filter passband to be dragged all the way to the actual limit

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Jakob Ketterl 2024-02-13 23:23:14 +01:00
parent 3a79ff3552
commit 82944ff068
1 changed files with 12 additions and 4 deletions
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16
htdocs/lib/Demodulator.js
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@ -182,18 +182,26 @@ Envelope.prototype.drag_move = function(x) {
//frequency.
if (this.dragged_range === dr.beginning || this.dragged_range === dr.bfo || this.dragged_range === dr.pbs) {
//we don't let low_cut go beyond its limits
if ((new_value = this.drag_origin.low_cut + minus * freq_change) < this.demodulator.filter.getLimits().low) return true;
if ((new_value = this.drag_origin.low_cut + minus * freq_change) < this.demodulator.filter.getLimits().low) {
new_value = this.demodulator.filter.getLimits().low;
}
//nor the filter passband be too small
if (this.demodulator.high_cut - new_value < this.demodulator.filter.min_passband) return true;
if (this.demodulator.high_cut - new_value < this.demodulator.filter.min_passband) {
new_value = this.demodulator.high_cut - this.demodulator.filter.min_passband;
}
//sanity check to prevent GNU Radio "firdes check failed: fa <= fb"
if (new_value >= this.demodulator.high_cut) return true;
this.demodulator.setLowCut(new_value);
}
if (this.dragged_range === dr.ending || this.dragged_range === dr.bfo || this.dragged_range === dr.pbs) {
//we don't let high_cut go beyond its limits
if ((new_value = this.drag_origin.high_cut + minus * freq_change) > this.demodulator.filter.getLimits().high) return true;
if ((new_value = this.drag_origin.high_cut + minus * freq_change) > this.demodulator.filter.getLimits().high) {
new_value = this.demodulator.filter.getLimits().high;
}
//nor the filter passband be too small
if (new_value - this.demodulator.low_cut < this.demodulator.filter.min_passband) return true;
if (new_value - this.demodulator.low_cut < this.demodulator.filter.min_passband) {
new_value = this.demodulator.low_cut + this.demodulator.filter.min_passband;
}
//sanity check to prevent GNU Radio "firdes check failed: fa <= fb"
if (new_value <= this.demodulator.low_cut) return true;
this.demodulator.setHighCut(new_value);