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implement Run time Auto Scaling - CMSCOPE block #2

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implement Run time Auto Scaling - CMSCOPE block #2

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c17d055
implement Run time Auto Scaling - CMSCOPE block
mittalpulkit Jun 28, 2016
606322a
Update cmscope.c
mittalpulkit Jun 28, 2016
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55 changes: 52 additions & 3 deletions scilab/modules/scicos_blocks/src/c/cmscope.c
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Original file line number Diff line number Diff line change
@@ -1,9 +1,11 @@
/*
* Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
* Copyright (C) 2011-2012 - Scilab Enterprises - Clement DAVID
* Copyright (C) 2012 - 2016 - Scilab Enterprises
*
* Copyright (C) 2012 - 2016 - Scilab Enterprises
*
* Copyright (C) 2016 - Pulkit Mittal <[email protected]>
* Copyright (C) 2016 - Lakshmi Prasanna Mutyala <[email protected]>
*
* This file is hereby licensed under the terms of the GNU GPL v2.0,
* pursuant to article 5.3.4 of the CeCILL v.2.1.
* This file was originally licensed under the terms of the CeCILL v2.1,
Expand Down Expand Up @@ -662,13 +664,60 @@ static void appendData(scicos_block * block, int input, double t, double *data)

/*
* Update data
*
* Implements Run-Time Auto scaling of graphs
*
*/
if (sco != NULL)
{
for (i = 0; i < block->insz[input]; i++)
{
const double value = data[i];
double value = data[i];
//printf("value(to be plotted)=%lf\n",value);
setBuffersCoordinates(block, input, sco->internal.bufferCoordinates[input][i], sco->internal.numberOfPoints[input], block->ipar[2], t, value);

double max_curr_val,prev_max_curr_val;
//Get the current maximum value of the axes
max_curr_val = block->rpar[block->nrpar - 2 * (block->nin) + 2 * input+1];
prev_max_curr_val = max_curr_val;

double min_curr_val,prev_min_curr_val;
//Get the current minimum value of the axes
min_curr_val = block->rpar[block->nrpar - 2 * (block->nin) + 2 * input];
prev_min_curr_val = min_curr_val;

/* If the value to be plotted exceeds the current range, then we update the range.
* We could update the range from current value to the new value i.e. (value + R)
* where R varies from 0 to approx 150. So we have used (value + 100.0) to give the graph good feature.
*
* However, the auto-scaling feature implemented is general and will work fine even for
*/

//If the value to be plotted is greater than or equal to the current max, then update the current max
if(value >= max_curr_val)
{
max_curr_val = value + 10.0;
block->rpar[block->nrpar - 2 * (block->nin) + 2 * input+1] = max_curr_val;
}

//If the value to be plotted is smaller than or equal to the current min, then update the current min
if(value <= min_curr_val)
{
min_curr_val = value - 10.0;
block->rpar[block->nrpar - 2 * (block->nin) + 2 * input] = min_curr_val;
}

//If value has changed, call the setPolylinesBounds function to update the ranges
if((max_curr_val != prev_max_curr_val) || (min_curr_val != prev_min_curr_val))
{
if (setPolylinesBounds(block, input, sco->scope.periodCounter[input]) == FALSE)
{
set_block_error(-5);
freeScoData(block);
sco = NULL;
}
}

}

sco->internal.numberOfPoints[input]++;
Expand Down