/usr/share/doc/libplplot12/examples/ada/xthick31a.adb is in libplplot-ada1-dev 5.10.0+dfsg2-0.1ubuntu2.
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-- set/get tester
-- Copyright (C) 2008 Jerry Bauck
-- This file is part of PLplot.
-- PLplot is free software; you can redistribute it and/or modify
-- it under the terms of the GNU Library General Public License as published
-- by the Free Software Foundation; either version 2 of the License, or
-- (at your option) any later version.
-- PLplot is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU Library General Public License for more details.
-- You should have received a copy of the GNU Library General Public License
-- along with PLplot; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
with
Ada.Text_IO,
Ada.Long_Float_Text_IO,
Ada.Strings,
Ada.Strings.Fixed,
Ada.Strings.Unbounded,
Ada.Numerics,
Ada.Numerics.Long_Elementary_Functions,
PLplot_Auxiliary,
PLplot;
use
Ada.Text_IO,
Ada.Long_Float_Text_IO,
Ada.Strings,
Ada.Strings.Fixed,
Ada.Strings.Unbounded,
Ada.Numerics,
Ada.Numerics.Long_Elementary_Functions,
PLplot_Auxiliary,
PLplot;
-- This example mostly outputs text. As part of the PLplot testing regime, we
-- require that the text output match that of the C version, x31c.c, exactly.
-- Therefore, certain extra measures were made in this Ada version to assure
-- that matching text is created.
procedure xthick31a is
xmin, xmax, ymin, ymax, zxmin, zxmax, zymin, zymax : Long_Float;
xmid, ymid, wx, wy : Long_Float;
mar, aspect, jx, jy, ori : Long_Float;
win, level2, digmax, digit, compression1, compression2 : Integer;
xp0, yp0, xp1, yp1, xp2, yp2 : Long_Float;
xleng0, yleng0, xoff0, yoff0 : Integer;
xleng1, yleng1, xoff1, yoff1, xleng2, yleng2, xoff2, yoff2 : Integer;
num0, bmax0, num1, bmax1, num2, bmax2, r, g, b : Integer;
fam0, fam1, fam2 : Boolean;
a : Long_Float;
r1 : Integer_0_255_Array(0 .. 1) := (0, 255);
g1 : Integer_0_255_Array(0 .. 1) := (0, 255);
b1 : Integer_0_255_Array(0 .. 1) := (0, 0);
a1 : Real_Vector(0 .. 1) := (1.0, 1.0);
status : Integer;
fnam : Unbounded_String;
-- Convert a boolean to integers 0 or 1.
function Boolean_To_Integer(B : Boolean) return Integer is
begin
if B then
return 1;
else
return 0;
end if;
end Boolean_To_Integer;
-- Function to return a formated float that looks like what C does.
function PF(x : Long_Float) return String is
A_String : String(1 .. 30);
begin
Put(A_String, x, Aft => 6, Exp => 0);
return Trim(A_String, Left);
end PF;
begin
-- Parse and process command line arguments
status := 0;
Parse_Command_Line_Arguments(Parse_Full);
-- Test setting / getting familying parameters before plinit.
-- Save values set by plparseopts to be restored later.
Get_File_Family_Parameters(fam0, num0, bmax0);
fam1 := False;
num1 := 10;
bmax1 := 1000;
Set_File_Family_Parameters(fam1, num1, bmax1);
-- Retrieve the same values?
Get_File_Family_Parameters(fam2, num2, bmax2);
Put_Line("family parameters: fam, num, bmax ="
& Integer'image(Boolean_To_Integer(fam2))
& Integer'image(num2) & Integer'image(bmax2));
if fam2 /= fam1 or num2 /= num1 or bmax2 /= bmax1 then
Put_Line(Standard_Error, "Get_File_Family_Parameters test failed");
status := 1;
end if;
-- Restore values set initially by plparseopts.
Set_File_Family_Parameters(fam0, num0, bmax0);
-- Test setting / getting page parameters before plinit.
-- Save values set by plparseopts to be restored later.
Get_Page_Parameters(xp0, yp0, xleng0, yleng0, xoff0, yoff0);
xp1 := 200.0;
yp1 := 200.0;
xleng1 := 400;
yleng1 := 200;
xoff1 := 10;
yoff1 := 20;
Set_Page_Parameters(xp1, yp1, xleng1, yleng1, xoff1, yoff1);
-- Retrieve the same values?
Get_Page_Parameters(xp2, yp2, xleng2, yleng2, xoff2, yoff2);
Put("page parameters: xp, yp, xleng, yleng, xoff, yoff = "
& PF(xp2) & " " & PF(yp2));
Put_Line(Integer'image(xleng2) & Integer'image(yleng2)
& Integer'image(xoff2) & Integer'image(yoff2));
if xp2 /= xp1 or yp2 /= yp1 or xleng2 /= xleng1 or yleng2 /= yleng1 or
xoff2 /= xoff1 or yoff2 /= yoff1 then
Put_Line(Standard_Error, "Get_Page_Parameters test failed");
status := 1;
end if;
-- Restore values set initially by plparseopts.
Set_Page_Parameters(xp0, yp0, xleng0, yleng0, xoff0, yoff0);
-- Test setting / getting compression parameter across Initialize_PLplot.
compression1 := 95;
Set_Compression_Level(compression1);
-- Initialize plplot.
Initialize_PLplot;
-- Test if device initialization screwed around with the preset
-- compression parameter.
Get_Compression_Level(compression2);
Put_Line("Output various PLplot parameters");
Put_Line("compression parameter =" & Integer'image(compression2));
if (compression2 /= compression1) then
Put_Line(Standard_Error, "Get_Compression_Level test failed");
status := 1;
end if;
-- Exercise Enable_Color_Output, Set_One_Color_Map_0, Set_Color_Map_1_RGB, and Set_Color_Map_1_RGBa to make sure
-- they work without any obvious error messages.
Enable_Color_Output(True);
Set_One_Color_Map_0(1, 255, 0, 0);
Set_Color_Map_1_RGB(r1, g1, b1);
Set_Color_Map_1_RGB_And_Alpha(r1, g1, b1, a1);
Get_Run_Level(level2);
Put_Line("level parameter =" & Integer'image(level2));
if (level2 /= 1) then
Put_Line(Standard_Error, "Get_Run_Level test failed.");
status := 1;
end if;
Advance_To_Subpage(Next_Subpage);
Set_Viewport_Normalized(0.01, 0.99, 0.02, 0.49);
Get_Viewport_Normalized(xmin, xmax, ymin, ymax);
Put_Line("plvpor: xmin, xmax, ymin, ymax = "
& PF(xmin) & " " & PF(xmax) & " " & PF(ymin) & " " & PF(ymax));
if xmin /= 0.01 or xmax /= 0.99 or ymin /= 0.02 or ymax /= 0.49 then
Put_Line(Standard_Error, "Get_Viewport_Normalized test failed");
status := 1;
end if;
xmid := 0.5 * (xmin + xmax);
ymid := 0.5 * (ymin + ymax);
Set_Viewport_World(0.2, 0.3, 0.4, 0.5);
Get_Viewport_World(xmin, xmax, ymin, ymax);
Put_Line("plwind: xmin, xmax, ymin, ymax = "
& PF(xmin) & " " & PF(xmax) & " " & PF(ymin) & " " & PF(ymax));
if xmin /= 0.2 or xmax /= 0.3 or ymin /= 0.4 or ymax /= 0.5 then
Put_Line(Standard_Error, "Get_Viewport_World test failed");
status := 1;
end if;
-- Get world coordinates for middle of viewport.
World_From_Relative_Coordinates(xmid,ymid,wx,wy,win);
Put_Line("world parameters: wx, wy, win = "
& PF(wx) & " " & PF(wy) & Integer'image(win));
if abs(wx-0.5*(xmin+xmax))>1.0E-5 or abs(wy-0.5*(ymin+ymax))>1.0E-5 then
Put_Line(Standard_Error, "World_From_Relative_Coordinates test failed");
status := 1;
end if;
-- Retrieve and print the name of the output file (if any).
-- This goes to stderr not stdout since it will vary between tests and
-- we want stdout to be identical for compare test.
fnam := To_Unbounded_String(Get_Output_File_Name);
if fnam = Null_Unbounded_String then
Put_Line("No output file name is set");
else
Put_Line("Output file name read");
end if;
Put_Line(Standard_Error, "Output file name is " & Get_Output_File_Name);
-- Set and get the number of digits used to display axis labels.
-- Note digit is currently ignored in pls[xyz]ax and
-- therefore it does not make sense to test the returned value.
Set_Floating_Point_Display_X(3, 0);
Get_X_Label_Parameters(digmax, digit);
Put_Line("x axis parameters: digmax, digits ="
& Integer'image(digmax) & Integer'image(digit));
if digmax /= 3 then
Put_Line(Standard_Error, "Get_X_Label_Parameters test failed");
status := 1;
end if;
Set_Floating_Point_Display_Y(4, 0);
Get_Y_Label_Parameters(digmax, digit);
Put_Line("y axis parameters: digmax, digits ="
& Integer'image(digmax) & Integer'image(digit));
if digmax /= 4 then
Put_Line(Standard_Error, "Get_Y_Label_Parameters test failed");
status := 1;
end if;
Set_Floating_Point_Display_Z(5, 0);
Get_Z_Label_Parameters(digmax, digit);
Put_Line("z axis parameters: digmax, digits ="
& Integer'image(digmax) & Integer'image(digit));
if digmax /= 5 then
Put_Line(Standard_Error, "Get_Z_Label_Parameters test failed");
status := 1;
end if;
Set_Device_Window_Parameters(0.05, PL_NOTSET, 0.1, 0.2);
Get_Device_Window_Parameters(mar, aspect, jx, jy);
Put_Line("device-space window parameters: mar, aspect, jx, jy = "
& PF(mar) & " " & PF(aspect) & " " & PF(jx) & " " & PF(jy));
if mar /= 0.05 or jx /= 0.1 or jy /= 0.2 then
Put_Line(Standard_Error, "Get_Device_Window_Parameters test failed");
status := 1;
end if;
Set_Plot_Orientation(1.0);
Get_Plot_Orientation(ori);
Put_Line("ori parameter = " & PF(ori));
if ori /= 1.0 then
Put_Line(Standard_Error, "Get_Plot_Orientation test failed");
status := 1;
end if;
Set_Device_Window_Extrema(0.1, 0.2, 0.9, 0.8);
Get_Device_Window_Extrema(xmin, ymin, xmax, ymax);
Put_Line("plot-space window parameters: xmin, ymin, xmax, ymax = "
& PF(xmin) & " " & PF(ymin) & " " & PF(xmax) & " " & PF(ymax));
if xmin /= 0.1 or xmax /= 0.9 or ymin /= 0.2 or ymax /= 0.8 then
Put_Line(Standard_Error, "Get_Device_Window_Extrema test failed");
status := 1;
end if;
Set_Zoom(0.1, 0.1, 0.9, 0.9);
Get_Device_Window_Extrema(zxmin, zymin, zxmax, zymax);
Put_Line("zoomed plot-space window parameters: xmin, ymin, xmax, ymax = "
& PF(zxmin) & " " & PF(zymin) & " " & PF(zxmax) & " " & PF(zymax));
if
abs(zxmin - (xmin + (xmax - xmin) * 0.1)) > 1.0E-5 or
abs(zxmax - (xmin + (xmax - xmin) * 0.9)) > 1.0E-5 or
abs(zymin - (ymin + (ymax - ymin) * 0.1)) > 1.0E-5 or
abs(zymax - (ymin + (ymax - ymin) * 0.9)) > 1.0E-5
then
Put_Line(Standard_Error, "Set_Zoom test failed");
status := 1;
end if;
Set_Background_Color_RGB(10, 20, 30);
Get_Background_Color_RGB(r, g, b);
Put_Line("background colour parameters: r, g, b ="
& Integer'image(r) & Integer'image(g) & Integer'image(b));
if r /= 10 or g /= 20 or b /= 30 then
Put_Line(Standard_Error, "Get_Background_Color_RGB test failed");
status := 1;
end if;
Set_Background_Color_RGB_And_Alpha(20, 30, 40, 0.5);
Get_Background_Color_RGB_And_Alpha(r, g, b, a);
Put_Line("background/transparency colour parameters: r, g, b, a ="
& Integer'image(r) & Integer'image(g) & Integer'image(b) & " " & PF(a));
if r /= 20 or g /= 30 or b /= 40 or a /= 0.5 then
Put_Line(Standard_Error, "Get_Background_Color_RGBa test failed");
status := 1;
end if;
End_PLplot;
end xthick31a;
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