r, g, b -- arrays
min, max -- numbers
References to class in modules in ./cls directory.
| Function | Parameter Type | Remark (http://geography.uoregon.edu/datagraphics/color_scales.htm) |
| set(r, g, b, min, max, discrete=true, interoplate=0, digit=1, position=[0.85, 0.15, 0.02, 0.7]) |
r, g, b -- arrays |
Sets colorbar colors. min and max should be the range of contour levels. |
| get(v) | number | Returns color array for the contour level. |
| position(xoffset, yoffset, width, height) | numbers | Set colorbar position in the global coordinate system. |
| show(w=800, h=300) | numbers | Shows colorbar. Should be called after setting colors. |
| font(size=10, truetype="") | number, string | Set font type face and font size. |
| bl2do8(min, max, discrete=true) | min, max -- numbers | Sets colorbar colors to the preset colors: |
| bl2do10(min, max, discrete=true) | min, max -- numbers | Sets colorbar colors to the preset colors: |
| dc2br8(min, max, discrete=true) | min, max -- numbers | Sets colorbar colors to the preset colors: |
| dc2br10(min, max, discrete=true) | min, max -- numbers | Sets colorbar colors to the preset colors: |
| dc2br18(min, max, discrete=true) | min, max -- numbers | Sets colorbar colors to the preset colors: |
| ds2br8(min, max, discrete=true) | min, max -- numbers | Sets colorbar colors to the preset colors: |
| gr2mg16(min, max, discrete=true) | min, max -- numbers | Sets colorbar colors to the preset colors: |
| bl2dr18(min, max, discrete=true) | min, max -- numbers | Sets colorbar colors to the preset colors: |
| bl2gr14(min, max, discrete=true) | min, max -- numbers | Sets colorbar colors to the preset colors: |
| br2bl12(min, max, discrete=true) | min, max -- numbers | Sets colorbar colors to the preset colors: |
| bl2or14(min, max, discrete=true) | min, max -- numbers | Sets colorbar colors to the preset colors: |
| pair12(min, max, discrete=true) | min, max -- numbers | Sets colorbar colors to the preset colors: |
| Function | Parameter Type | Remark |
| size(width, height) | numbers | Sets image size. |
| add(shape, transform=true) | user | Adds a zeGraph object. |
| rotate(rotatex, rotatez) | numbers | Rotates the globe about global x-axis and the z-axis for the given degrees. |
| move(dx, dy) | numbers | move globe up-down or left-right. |
| view(lat, lon) | numbers | Views the globe from the given latitude-longitude. |
| save(fname) | string | Saves image to the file. |
| surface(iteration=5) | number | Creates globe surface. The iteration should be larger than 4 and less than 8. Returns a polygon object. |
| texture(fname) | string | Creates globe surface and uses the image in the file as texture. |
| grid(deg, width=1) | number | Draw latitude-longitude grid lines. Returns a node object. |
| gshhs(fname) | string | Reads coastline data from the GSHHS file and draw the lines. Returns a line object. |
| line(lon1, lat1, lon2, lat2) | numbers | Draws a line from (lon1,lat1) to (lon2,lat2) and return a line object. |
| text(x, y, string, size=12, halign=0, valign=-1) | number, number, string | Puts a text string at (x, y) in the global coordinate system and returns a text object. The text is horizontally centered if halign = 0, left aligned if halign < 0, right aligned if halign > 0, vertically centered if valign = 0, bottom aligned if valign < 0, and top aligned if valign > 0. |
| projection(lon, lat) | numbers | Returns x-y-z in an array as the projection results of the given longitude and latitude. |
| distance(lon1, lat1, lon2, lat2) | numbers | Returns the distance between (lon1,lat1) and (lon2,lat2) on a unit globe surface. |
| save(fname) | string | Saves image to the file. |
| show() | Displays the globe. It should be called after setting the globe surface and grid | |
| animate() | Displays the globe and allows controlling rotation by arrow keys and mouse. |
| Function | Parameter Type | Remark |
| size(width, height) | numbers | Sets image size. |
| add(shape, transform=true, anchor=null) | shape -- user | Adds a zeGraph object to plot. |
| font(size=10, truetype="") | number, string | Set font type face and font size. |
| scale(xscal, yscale) | numbers | Resizes the plot. |
| move(dx, dy) | numbers | Moves the plot off the global view center. |
| xaxis(title="X", range=[-1,1], bottom=true, tickmarks=[-1,.5,0], tickdigits=1) | Customizes x-axis. | |
| yaxis(title="Y", range=[-1,1], left=true, tickmarks=[-1,.5,0], tickdigits=1) | Customizes y-axis. | |
| line(x, y, smooth=false) | arrays or matrixes | Plots a line and returns the object. |
| polygon(x, y, fill=false) | arrays or matrixes | Plots a polygon and returns the object. |
| frame(width=1.5) | Plots a frame around axises. | |
| point(x, y, size=1, smooth=false) | arrays or matrixes | Plots points and returns the object. |
| symbol(x, y, symbol) | numbers, arrays, or matrixes | Puts the symbol at given positions. |
| bar(x, dx, y) | dx -- number x, y -- numbers, arrays, or matrixes |
Pots bars and returns a polygon object. |
| text(x, y, string, size=12, halign=0, valign=-1) | x, y -- numbers string -- string |
Puts a text string at (x, y) and returns a text object. The text is horizontally centered if halign = 0, left aligned if halign < 0, right aligned if halign > 0, vertically centered if valign = 0, bottom aligned if valign < 0, and top aligned if valign > 0. |
| image(p1, p2, p3, p4, fname) | array, array, array, string | Puts the image in filename in a rectangle determined by points of p1(x,y), p2(x,y), p3(x,y), and p4(x,y). |
| gshhs(fname) | string | Reads coastline data from the GSHHS file and draw the lines. Returns a line object. |
| arrow(x, y, u, uscale, v, vscale, size=5, smooth=false) | numbers | Plots an arrow that starts at (x, y) and points toward (u, v) like a wind vector, and returns a line object. The size parameter determines arrow head size in pixel. |
| save(fname) | string | Saves image to the file. |
| show() | Displays the plot. | |
| animate() | Displays the plot and allows controlling rotation by arrow keys and mouse. |
| Function | Parameter Type | Remark |
| size(width, height) | numbers | Sets image size. |
| add(shape, transform=true, anchor=null) | shape -- user | Adds a zeGraph object to plot. |
| font(size=10, truetype="") | number, string | Set font type face and font size. |
| scale(xscal, yscale, zscale) | numbers | Resizes the plot. |
| move(dx, dy) | numbers | Moves the plot off the global view center. |
| rotate(rotatex, rotatez) | numbers | Rotates the plot. |
| xaxis(title="X", range=[-1,1], anchor=[0,-1,-1], tickmarks=[-1,.5,0], tickdigits=1) | Customizes x-axis. | |
| yaxis(title="Y", range=[-1,1], anchor=[-1,0,-1], tickmarks=[-1,.5,0], tickdigits=1) | Customizes y-axis. | |
| zaxis(title="Z", range=[-1,1], anchor=[-1,1,0], tickmarks=[-1,.5,0], tickdigits=1) | Customizes z-axis. | |
| line(x, y, z) | arrays or matrixes | Plots a line and returns the object. |
| polygon(x, y, z, fill=false) | arrays or matrixes | Plots a polygon and returns the object. |
| point(x, y, z, size=1) | arrays or matrixes | Plots points and returns the object. |
| symbol(x, y, z, symbol) | numbers, arrays, or matrixes | Puts the symbol at given positions. |
| text(x, y, z, string, size=12, halign=0, valign=-1) | x, y, z-- numbers string -- string |
Puts a text string at (x, y, z) and returns a text object. The text is horizontally centered if halign = 0, left aligned if halign < 0, right aligned if halign > 0, vertically centered if valign = 0, bottom aligned if valign < 0, and top aligned if valign > 0. |
| image(p1, p2, p3, p4, fname) | array, array, array, string | Puts the image in filename in a rectangle determined by points of p1(x,y,z), p2(x,y,z), p3(x,y,z), and p4(x,y,z). |
| gshhs(fname, z=c_zmin) | string | Reads coastline data from the GSHHS file and draw the lines on the x-y plane. Returns a line object. |
| save(fname) | string | Saves image to the file. |
| show() | Displays the plot. | |
| animate() | Displays the plot and allows controlling rotation by arrow keys and mouse. |
| Function | Parameter Type | Remark |
| plus(size=5) | number | Returns a line object for drawing a plus symbol. |
| cross(size=5) | number | Returns a line object for drawing a cross symbol. |
| triangle(size=5) | number | Returns a polygon object for drawing a filled triangle symbol. You can set the fill mode to -1 to draw only the outline. |
| square(size=5) | number | Returns a polygon object for drawing a filled square symbol. You can set the fill mode to -1 to draw only the outline. |
| diamond(size=5) | number | Returns a polygon object for drawing a filled diamond symbol. You can set the fill mode to -1 to draw only the outline. |
| circl(size=5) | number | Returns a line object for drawing a circle symbol. |
| pie(size=5) | number | Returns a polygon object for drawing a filled circle symbol. |
| Function | Parameter Type | Remark |
| disk(n, r) | numbers | Returns a polygon object for drawing a disk on x-y plane with normal pointing to z. The slice number n determines the fineness, and the radius r determines the size. |
| cylinder(n, r, h) | numbers | Returns a polygon object for drawing a cylinder on x-y plane with height h along z-axis. The slice number n determines the fineness, and the radius r determines the size. |
| cone(n, r, h) | numbers | Returns a polygon object for drawing a cone on x-y plane with height h along z-axis. The slice number n determines the fineness, and the radius r determines the size. |
| sphere(n, r) | numbers | Returns a polygon object for drawing a sphere. The iteration number n (1 to 8) determines the fineness, and the radius r determines the size. |