X-Git-Url: https://git.ucc.asn.au/?p=atyndall%2Fcits2231.git;a=blobdiff_plain;f=helper.c;h=b80a513ea35dd8d76d7b69dc5ef06f0a3be238af;hp=b1b0d967141ad6d5b08f5d8227fc924fcec4da3b;hb=a73bfc78d5ebac0c1cb851ed8b619fbd13acea9c;hpb=2813933dbf92ed25a4b00c514ad20c1893145538 diff --git a/helper.c b/helper.c index b1b0d96..b80a513 100644 --- a/helper.c +++ b/helper.c @@ -263,17 +263,16 @@ void drawLine() { glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); glColor3f( 0.0, 0.0, 0.0 ); + float arrowLength = 1.0; + glBegin(GL_LINES); // x arrow glVertex3i( lineLength, 0.0, 0.0 ); glVertex3i( -lineLength, 0.0, 0.0 ); // x arrowheads - glVertex3i( lineLength - 1, 0.0, 0.0 ); - glVertex3i( -lineLength - 1, 0.0, 0.0 ); - - glVertex3i( lineLength - 1, 0.0, 0.0 ); - glVertex3i( -lineLength + 1, 0.0, 0.0 ); + glVertex3i( lineLength, 0.0, 0.0 ); + glVertex3i( lineLength - arrowLength, 0.0, arrowLength ); // z arrow glVertex3i( 0.0, 0.0, lineLength );