;+ ; Name: crib_plotxyvec ; ; Purpose:crib to demonstrate capabilities of plotxyvec ; ; Notes: run it by compiling in idl and then typing ".go" ; or copy and paste. ; ; The options: hsize,color,hthick,solid, & thick from the arrow ; routine are usable in this routine. ; ;;Warning: this crib uses some data from the THEMIS branch. You'll require those routines to run this crib ; ; ; ; $LastChangedBy: pcruce $ ; $LastChangedDate: 2013-12-16 17:46:48 -0800 (Mon, 16 Dec 2013) $ ; $LastChangedRevision: 13689 $ ; $URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/trunk/general/examples/crib_plotxyvec.pro $ ;- ;set the colors correctly init_crib_colors timespan,'2008-03-24' thm_load_state,probe='a',coord='gsm' ;put state data in RE tkm2re,'tha_state_pos',/replace time_clip,'tha_state*','2008-03-24/03:00:00','2008-03-24/05:00:00',/replace tplotxy,'tha_state_pos',title="THEMIS A Position & Velocity" get_data,'tha_state_pos',data=d_state get_data,'tha_state_vel',data=d_vel ;select x,y dimension xy = d_state.y[*,0:1] dxy = d_vel.y[*,0:1] dim = dimen(d_state.y) ;look at only 1/5 of points(so it won't be too cluttered) idx = indgen(dim[0]/5) * 5 xy = xy[idx,*] dxy = dxy[idx,*] ;plot ;This example decreases the size of the arrow head with hsize ;and decrease the apparent size of the arrow with arrowscale ;NOTE: you can also use uarrowdatasize if you want the unit ;arrow to represent a different number of units. plotxyvec,xy,dxy,/over,hsize=.2,arrowscale=.25,uarrowtext="[km/s] THEMIS A Velocity" stop ;basic call ;these are the arrow start positions xy = [[indgen(11)],[indgen(11)]] ;these are the arrow offsets uv = [[intarr(11)-1],[intarr(11)+1]] plotxyvec,xy,uv,uarrowdatasize=1.0 stop ;by default plots are isotropic xy = [[indgen(5*7) mod 5],[indgen(5*7) / 5]] uv = [[intarr(5*7)+.5],[intarr(5*7)-.5]] plotxyvec,xy,uv stop ;you can disable isotropic plotting ;note that a unit arrow is not automatically drawn ;for non-isotropic plots. This is because the ;different axes scale differently. plotxyvec,xy,uv,/noisotropic stop ;you can plot multiple plots on a panel plotxyvec,xy,uv,multi='2 1' plotxyvec,xy+uv,-1*uv,/add,uarrowoffset=.05 stop ;you can set colors with numbers or letters plotxyvec,xy,uv,multi='2 1',color="b" plotxyvec,xy+uv,-1*uv,/add,color=2 stop ;you can control the margins of the plots plotxyvec,xy,uv,multi='2 1',xmargin=[.2,.3] plotxyvec,xy+uv,-1*uv,/add,ymargin=[.01,.1] stop ;you can interleave these plots with others ;and plot arrows on top of other plots plotxyvec,xy,uv,multi='3,1',xsize=900,ysize=300 plotxy,xy,/add plotxyz,indgen(5),indgen(7),indgen(5,7),/add plotxyvec,xy,uv,/over stop ; you can add an overall title to a multi plot ; and adjust overall margins ([bottom, left, top, right]) plotxyvec,xy,uv,multi='3,1',xsize=900,ysize=300, mtitle='The title', mmargin=[0.1,0.1,0.1,0.1] plotxy,xy,/add plotxyz,indgen(5),indgen(7),indgen(5,7),/add plotxyvec,xy,uv,/over stop ; you can create nonsymmetrical layouts using mpanel plotxyvec,xy,uv,multi='2,2',xsize=500,ysize=500, mtitle='The title', mmargin=[0.1,0.15,0.1,0.1] plotxy,xy,/add plotxyz,indgen(5),indgen(7),indgen(5,7),/add, mpanel='0:1,1', xmargin=[0.3,0.3] plotxyvec,xy,uv,/over stop ;you can automatically replot plots window,xsize=600,ysize=200 plotxyvec stop ;you can set windowing options plotxyvec,xy,uv,window=1,xsize=700,ysize=700,wtitle="Im a new window" stop ;you can set the range of the plot with x,y range ;/clip will clip arrows that are outside of the range plotxyvec,xy,uv,xrange=[0,3],yrange=[2,5],/clip stop ;you can generate a grid on the plot plotxyvec,xy,uv,/grid,xticks=4,yticks=6 stop ;you can control the side of the plot that ;the unit arrow is placed plotxyvec,xy,uv,uarrowside="left" stop ;you can move the unit arrow further or closer to the plot ;you can add text ;you can change the size and color of the arrows plotxyvec,xy,uv,uarrowside="left",uarrowoffset=.2,uarrowtext="hello",$ hsize=.5 stop ;you can use normal plot options like xtitle, ytitle, & title plotxyvec,xy,uv,xtitle="hello",ytitle="world",title="title demo" stop end