Clipping

clipping

the identification of objects or parts of objects as either inside or outside a specified region

interior clipping

saving of what’s inside the region - a copy of a piece of a picture

exterior clipping

saving of what’s outside the region - clear a piece of paper

volume

in 3D, clipping is a

rectangle

in 2D, clipping is a

new polygon

when clipping a polygon, you make a (2 words) that is entirely inside the designated region

trivial accept

when clipping a line, if both points are inside the designated region, this is called a (two words)

trivial reject

when clipping a line, if both points are in the same region but that region is not the ‘inside’, this is called a (two words)

ABOVE

x = x1 +(x2 - x1)\*(ymax - y1)/(y2 - y1) y = ymax

this is the formula to fix x and y if a point is () the designated region

Below

x = x1 +(x2 - x1)\*(ymin - y1)/(y2 - y1) y = ymin

this is the formula to fix x and y if a point is () the designated region

Right

y = y1 +(y2 - y1)\*(xmax - x1)/(x2 - x1) x = xmax

this is the formula to fix x and y if a point is () of the designated region

Left

y = y1 +(y2 - y1)\*(xmin - x1)/(x2 - x1) x = xmin

this is the formula to fix x and y if a point is () of the designated region

shift left

bitwise operation << x means (two words) x times