0x36302418126y36302418126
Grid:
Tics Lines:
Width px
Hash Lines:
Width px
Labels:
Font px
Trace Lines:
Robot 1:
Width px
Robot 2:
Width px
Robot 3:
Width px
Robot 4:
Width px
Axes: x-axis y-axis Show Grid
Grid: 24x24 inches 36x36 inches 72x72 inches
96x96 inches 192x192 inches
Quad: 4 quadrants 1 quadrant
Units: US Customary Metric
Background:

Robot 1

Initial Position:
( in, in)
Initial Angle:
deg
Current Position: (0 in, 0 in)
Current Angle: 90 deg
Wheel Radius:
Track Width:
in

Robot 2

Initial Position:
( in, in)
Initial Angle:
deg
Current Position: (6 in, 0 in)
Current Angle: 90 deg
Wheel Radius:
Track Width:
in

Robot 3

Initial Position:
( in, in)
Initial Angle:
deg
Current Position: (12 in, 0 in)
Current Angle: 90 deg
Wheel Radius:
Track Width:
in

Robot 4

Initial Position:
( in, in)
Initial Angle:
deg
Current Position: (18 in, 0 in)
Current Angle: 90 deg
Wheel Radius:
Track Width:
in

Animate an Hourglass
Problem Statement:
The pre-placed blocks will draw the outline of the hourglass with two triangles. They also will show the sand inside with a black triangle on the top half, and a black trapezoid on the bottom. Your task is to animate the hourglass so it begins with all the sand on the top and ends with all the sand sitting on the bottom.
/* Code generated by RoboBlockly v2.0 */
#include <chplot.h>
double i;
double y;
double x;
double x2;
double yBot;
double xBot1;
double xBot2;
CPlot plot;

plot.grid(PLOT_OFF);
for(i = 1; i <= 6; i += 0.25) {
  plot.backgroundColor("#c0c0c0");
  plot.strokeColor("black");
  plot.fillColor("white");
  plot.triangle(12, 6, 18, 18, 24, 6);
  plot.triangle(12, 30, 18, 18, 24, 30);
  plot.fillColor("black");
  y = 24 - i;
  x = (y - 54) * -0.5;
  x2 = (y + 18) * 0.5;
  plot.triangle(x, y, 18, 18, x2, y);
  yBot = 6 + i * 0.25;
  xBot1 = (yBot + 18) * 0.5;
  xBot2 = (yBot - 54) * -0.5;
  plot.quad(12, 6, 24, 6, xBot2, yBot, xBot1, yBot);
  delaySeconds(0.03);
}

plot.label(PLOT_AXIS_XY, "");
plot.grid(PLOT_OFF);
plot.tics(PLOT_AXIS_XY, PLOT_OFF);
plot.axis(PLOT_AXIS_XY, PLOT_OFF);
plot.axisRange(PLOT_AXIS_XY, 0, 36);
plot.ticsRange(PLOT_AXIS_XY, 6);
plot.sizeRatio(1);
plot.plotting();
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Problem Statement:
The pre-placed blocks will draw the outline of the hourglass with two triangles. They also will show the sand inside with a black triangle on the top half, and a black trapezoid on the bottom. Your task is to animate the hourglass so it begins with all the sand on the top and ends with all the sand sitting on the bottom.

		
Time