C Library Functions - sector (3)
NAME
sector(3f) - [M_draw:ARCS] Draw a sector. Note: sectors are polygons. (LICENSE:PD)
CONTENTS
Synopsis
Description
Examples
SYNOPSIS
subroutine sector(x, y, radius, startang, endang)
REAL x, y, radius, startang, endang
DESCRIPTION
Draw a sector. x, y, and radius are values in world units. Note: sectors are regarded as polygons, so if polyfill or polyhatch has been called with 1, the sectors will be filled or hatched accordingly.
EXAMPLES
Sample program:
program demo_sector use M_draw use M_draw, only : D_BLACK, D_WHITE use M_draw, only : D_RED, D_GREEN, D_BLUE use M_draw, only : D_YELLOW, D_MAGENTA, D_CYAN implicit none real :: b=0.5 real :: R=4.9 real :: X, Y, A integer :: key call prefsize(1000,200) call vinit(’ ’) call color(D_BLACK) call clear() call color(D_YELLOW) call page(-25.0-b, 25.0+b, -5.0-b, 5.0+b) call textsize(1.0,1.4) call font("futura.l") call centertext(.true.)! draw sectors with various start and end angles
call linewidth(150) call color(D_WHITE) X=-20; Y=0; R=5.0; A=0; B=30 call sector(X,Y,R,A,B) call move2(X, 4.0) call linewidth(50) call drawstr("0 to 30 deg.")
call linewidth(150) call color(D_RED) X=-10; Y=0; R=5; A=0; B=-45 call sector(X,Y,R,A,B) call move2(X,-4.0) call linewidth(50) call drawstr("0 to -45 deg.")
call polyfill(.true.)
call linewidth(150) call color(D_GREEN) X=-0; Y=0; R=5; A=100; B=200 call sector(X,Y,R,A,B) call move2(X,-4.0) call linewidth(50) call drawstr("100 to 200 deg.")
call polyhatch(.true.) call hatchpitch(1.0/2.0) call hatchang(90.0)
call linewidth(150) call color(D_MAGENTA) X=10; Y=0; R=5; A=-30; B=30 call sector(X,Y,R,A,B) call move2(X,-4.0) call linewidth(50) call drawstr("-30 to 30 deg.")
call hatchang(30.0) call linewidth(150) call color(D_CYAN) X=20; Y=0; R=5; A=45; B=-45 call sector(X,Y,R,A,B) call move2(X, 4.0) call linewidth(50) call drawstr(" 45 to -45 deg.")
key=getkey() call vexit() end program demo_sector
| Nemo Release 3.1 | sector (3) | February 23, 2025 |
