36 lines
1.2 KiB
JavaScript
36 lines
1.2 KiB
JavaScript
// Draw stuff, with P5 // CF p5js.org/reference
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// Time-stamp: <2020-02-02 14:46:00 Chuck Siska>
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// ------------------------------------------------------------
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// ===================================================== draw_grid ====
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// Draw a fancy grid with major & minor lines
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// & major row/col numbers.
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function draw_grid( rminor, rmajor, rstroke, rfill )
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{
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stroke( rstroke );
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fill( rfill );;
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let sz = g_canvas.cell_size;
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let width = g_canvas.wid*sz;
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let height = g_canvas.hgt*sz
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for ( var ix = 0; ix < width; ix += rminor )
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{
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let big_linep = (ix % rmajor == 0);
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let line_wgt = 1;
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if (big_linep) line_wgt = 2;
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strokeWeight( line_wgt );
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line( ix, 0, ix, height );
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strokeWeight( 1 );
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if ( ix % rmajor == 0 ) { text( ix, ix, 10 ); }
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}
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for ( var iy = 0; iy < height; iy += rminor )
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{
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let big_linep = (iy % rmajor == 0);
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let line_wgt = 1;
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if (big_linep) line_wgt = 2;
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strokeWeight( line_wgt );
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line( 0, iy, width, iy );
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strokeWeight( 1 );
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if ( iy % rmajor == 0 ) { text( iy, 0, iy + 10 ); }
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}
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}
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