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	tadd debug information for total slider force balance - slidergrid - grid of el…
	git clone git://src.adamsgaard.dk/slidergrid
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	---
	commit 75d805810911e239896f6865ab9af0dc10b2f2ed
	parent f592a85d991ec58487fb39ba92a7eb3f32b39f75
	Author: Anders Damsgaard <[email protected]>
	Date: Tue, 22 Mar 2016 11:28:12 -0700

	add debug information for total slider force balance

	Diffstat:
	M slidergrid/debug.h \| 4 ++++
	M slidergrid/main.c \| 17 ++++++++++++++++-
	M test.c \| 10 ++++++++++

	3 files changed, 30 insertions(+), 1 deletion(-)
	---
	diff --git a/slidergrid/debug.h b/slidergrid/debug.h
	t@@ -5,4 +5,8 @@
	// slider-bond initialization function
	//#define DEBUG_FIND_AND_BOND_TO_NEIGHBORS

	+// if defined, verbose information to stdout will be shown before the slider
	+// integration
	+#define DEBUG_SLIDER_FORCE_TORQUE_AND_NEIGHBORS
	+
	#endif
	diff --git a/slidergrid/main.c b/slidergrid/main.c
	t@@ -41,7 +41,7 @@ void print_status(simulation sim)

	int main(int argc, char** argv)
	{
	- int i;
	+ int i, j;

	// default values of command-line flags
	int verbose = 0;
	t@@ -137,6 +137,21 @@ int main(int argc, char** argv)
	sim.N,
	sim.iteration);

	+#ifdef DEBUG_SLIDER_FORCE_TORQUE_AND_NEIGHBORS
	+ printf("Slider %d: F = %f %f %f, T = %f %f %f, neighbors = ",
	+ i,
	+ sim.sliders[i].force.x,
	+ sim.sliders[i].force.y,
	+ sim.sliders[i].force.z,
	+ sim.sliders[i].torque.x,
	+ sim.sliders[i].torque.y,
	+ sim.sliders[i].torque.z);
	+ for (j=0; j<MAX_NEIGHBORS; j++)
	+ if (sim.sliders[i].neighbors[j] >= 0)
	+ printf("%d ", sim.sliders[i].neighbors[j]);
	+ puts("");
	+#endif
	+
	// update slider kinematics
	update_kinematics(sim.sliders[i], sim.dt, sim.iteration);
	}
	diff --git a/test.c b/test.c
	t@@ -2,6 +2,8 @@
	#include "slidergrid/grid.h"
	#include "slidergrid/slider.h"

	+#include <stdio.h>
	+
	// test a regular, 2d, orthogonal grid of sliders
	simulation setup_simulation()
	{
	t@@ -33,5 +35,13 @@ simulation setup_simulation()
	sim.time_end = 1.0;
	sim.file_interval = 0.1;

	+ if (write_simulation_output(&sim, ".")) {
	+ fprintf(stderr, "\nFatal error: Could not write one or more "
	+ "output files.\n");
	+ }
	+
	+
	+
	+
	return sim;
	}