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49.2 plotc: Plotting Contours Calling Sequence plotc ,,,, plotc , Description plotc is a mesh-oriented command. 49page 47. For general information, see the chapter introduction on The plotc command plots a contour map of fexpr above the mesh described by xexpr and yexpr. fexpr is a two-dimensional array of values dimensioned the same as xexpr and yexpr. If specified, xexpr is an array of x-axis values, yexpr is an array of y-axis values, ireg is a region map, and ¡keylist> is a list of optional keywords and values. Strides in krange or lrange are ignored by plotc. If plotc arguments are omitted, they are supplied by using the names in the variables ezcx, ezcy, and ezcireg, respectively. Default values for these names are zt, rt, and ireg. fexpr can also be the name of a function or macro which, when called with no arguments, returns a two-dimensional array of values of the appropriate shape. Optional Attributes The following optional attributes can be specified with this command. For object attributes, they are local to the command specified, i.e. they are not remembered across commands. grid, scale, thick, style, font, mark, marksize, lev, color, krange, lrange, region, legend, point If optional attributes are given on the plot command line, they are specified in the usual form: key1=value1,key2=value2,...,keyN=valueN To set an object attribute across commands use the attr command. 47.3See “Attribute Table” on page 31 for descriptions of the values which can be assigned to these keywords. Although it is recognized, the font attribute currently has no effect. Contour Levels,Colors, etc. The discussion of the command plotz (48.2see Section 6.2 ”plotz: Plotting Contours” on page 39) contains a detailed explanation of the way contour levels and colors are specified. The discussion there applies to plotc as well. The primary difference between plotc and plotz is that the former is a mesh-oriented command. This means that only the plotz mesh data discussion applies to plotc. Furthermore, because of the underlying mesh and the associated region map, the plotc command has the possibility of controlling the subregion over which contours are displayed by use of attributes krange, lrange, region. 248 Chapter 49. Mesh-Oriented Commands
The plotc command assumes that the physics quantity fexpr is zone-based, or zone-centered, which means that fexpr(i,j) is the average value associated with zone (i,j), and the values of fexpr(1,:) and fexpr(:,1) are irrelevant. Since the contour plot requires data at the mesh points, these values are interpolated to the mesh by simple averaging (as permitted by the subregion specification). To plot contours of an actual mesh-based, or point-centered, quantity (data at the mesh points), such as ut or vt, use the specification “point=yes” to tell plotc that the values are meshbased. This will avoid the above-mentioned averaging. (The default is point=no.) In the case of a mesh-based variable on a mesh containing no interior voids, plotz and plotc are equivalent. Thus, plotc z,x,y,ireg,point=yes, is equivalent to plotz z,x,y, where ¡keylist> contains attributes allowed by both commands. Customizing Contour Plots Several control variables which may be used to customize the contour plots were discussed in 48.2.2“Contour Control Parameters” on page 40 of the plotz description. Some NCAR Conpack parameters can be set to futher customize the contour plots. The routines cpseti, cpsetr, and cpsetc are used to set these parameters. The inquiry routines cpgeti, cpgetr and cpgetc are used to find out the current setting of those parameters. The user should refer to the NCAR document “CONPACK, A Contouring Package” (available on the web at http://ngwww.ucar.edu/ngdoc/ng/supplements/conpack/) for detailed information. The NCAR Conpack displays dotted lines around “voids”. (See ??Figure 7.5 on page 56 for an example.) These can be eliminated by executing the following calls prior to the plotc command: call cpseti ("PAI", -2) call cpseti ("CLU", 0) call cpseti ("PAI", -3) call cpseti ("CLU", 0) The first pair of calls turns off the boundary of an area filled with the “special value” used to indicate missing data. The second pair treats the case of the internal mapping routine returning “out of range”, say from the rt=-1.e8 conventionally used in voids. Example The following is an example of using plotc with default arguments. The data are as defined before the plotm examples, 49.1page 49. Note the dotted lines around the internal void. 49.2. plotc: Plotting Contours 249
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The Basis System Release 12.1 The B
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CONTENTS 1 The Basis System 1 1.1 E
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15.4 Delimiters . . . . . . . . . .
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40 List of Reserved Words 175 41 Li
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56.2 Lasnex-Specific Applications .
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63.21 Fparse Group . . . . . . . .
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79.3 Installation and Use . . . . .
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CHAPTER ONE The Basis System 1.1 En
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Allan Springer, Bert Still, Janet T
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CHAPTER TWO Getting Started 2.1 Wha
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You can use the LIST command to get
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CHAPTER THREE The Basis Language 3.
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y = 5 logical z z = x > y z Basis w
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INTEGER i(10) = [0,0,0,0,0,1,1,1,1,
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integer i1, i2, i3, n = 5 integer a
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4. Basis has additional types (RANG
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Basis> cgm on Beginning CGM File pr
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Then after the execution of the abo
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5.2.2 Controlling Line Length You c
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You can declare local variables ins
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CHAPTER SEVEN Built-in and Compiled
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7.2 iota and spanl The function iot
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shape([1,2], 2, 3) = [[1,2],[1,2],
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CHAPTER EIGHT Commands 8.1 The Basi
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Immediately following the underscor
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9.2 Reading in Previously Saved Dat
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• Syntax errors occur during the
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if you have trouble tracking down a
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x, and brf’s variable crf, and fi
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error because if we suppress the ma
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Part II Basis Language Reference 53
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CHAPTER THIRTEEN Basis Tokens 13.1
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13.3.2 Constants An integer constan
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Each individual variable to be init
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variables assume all of the attribu
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WARNING: Before adding or subtracti
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CHAPTER FIFTEEN Expressions 15.1 In
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2*a b will be divided by two, and t
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Evaluate inside the most deeply nes
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the resulting object, after applyin
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Then if x is a one-dimensional arra
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INTEGER x(5,5), y(5) is followed by
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CHAPTER SIXTEEN Display and Assignm
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y(3,2:6,1:7) = x is a correct assig
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eal x(3,3) call setlast("x", 2) # x
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IF() THEN ELSEIF () THEN ... ELSE
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CHAPTER SEVENTEEN WHILE Statement 1
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k = k + 1 ENDWHILE j = j + 1 ENDWHI
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adds up the elements of array a. Th
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19.3 Controlled DO The third type o
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CHAPTER TWENTY Functions Listed by
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CHAPTER TWENTYONE Built-in Function
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diag(x), diag(x,k) where x is a vec
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mxx(x,idim) returns the maximum ind
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This function returns the given ran
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sup can have an arbitrary number of
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CHAPTER TWENTYTWO User-Defined Func
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parameters in parentheses). The num
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CHAPTER TWENTYTHREE Compiled Functi
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CHAPTER TWENTYFOUR Defining Your Ow
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c # continuation of arglist echo CO
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Blanks are considered delimiters. T
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24.4 No Delimiters at All: the COMM
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CHAPTER TWENTYFIVE The Search Stack
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CHAPTER TWENTYSIX Package Control S
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CHAPTER TWENTYSEVEN The CTL Package
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CHAPTER TWENTYEIGHT Removing Functi
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CHAPTER TWENTYNINE LIST Command One
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CHAPTER THIRTY Obtaining and Settin
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CHAPTER THIRTYONE Help and News The
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CHAPTER THIRTYTWO Input, Output, an
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32.2 Resuming Reading RESUME [n] [f
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CHAPTER THIRTYTHREE The Stream I/O
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numbers with three-digit exponents
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“123” followed by “abc”;
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while (eof yes) call dostuff(j) i
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output onto extra lines. The except
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CALL TO format RESULTANT STRING str
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where unit is the unit specifier of
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CHAPTER THIRTYFOUR The Macro Facili
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355.66 $+433.44 $-55.22 $-12.98 whi
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The two arguments in the if test ar
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CHAPTER THIRTYFIVE Executing System
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CHAPTER THIRTYSIX Timing TIMER ON |
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CHAPTER THIRTYSEVEN Ending Basis EN
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CHAPTER THIRTYEIGHT Error Recovery
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a varies b varies Dump intermediate
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CHAPTER THIRTYNINE Interrupting Bas
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CHAPTER FORTY List of Reserved Word
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CHAPTER FORTYONE List of Non-Alphan
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CHAPTER FORTYTWO List of Parser Var
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42.2 Constants blank is a 80-charac
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CHAPTER FORTYTHREE List of Compiled
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iunit = basopen(name, access) This
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which appear in the limiting string
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default(name) = value If the = valu
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On the Cray, ranf is loaded from th
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43.19.2 cd, chdir() NAME cd, chdir(
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Part III EZN User Manual: The Basis
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Page 224 and 225: The command “on” opens a device
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Page 236 and 237: By specifying attributes and contro
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Page 240 and 241: Keyword Type Value Description styl
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Page 244 and 245: If the arguments are two-dimensiona
Page 246 and 247: Figure 48.1: Example of labelling a
Page 248 and 249: 48.2.1 Contour Levels Contour level
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Page 254 and 255: The following example installs a 18
Page 256 and 257: plotc te color=filled #The contour
Page 258 and 259: plotm kstyle=dashed,lstyle=dotted,k
Page 260 and 261: plotb # Plot boundaries. plotm ksty
Page 264 and 265: plotc z Figure 49.5: Example of mes
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Page 268 and 269: plotf z plotc z nf # Superimpose co
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Page 272 and 273: # Continuation from the last exampl
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Page 278 and 279: nreg = max(ireg) do i=1,nreg intege
Page 280 and 281: Optional Attributes The following o
Page 282 and 283: plots, these may be set to values a
Page 284 and 285: • 4 yes no no • 5 yes no yes
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Page 292 and 293: Description The sf command displays
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Page 302 and 303: Examples The following example plot
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Page 310 and 311: ezcreset Determines if attributes s
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57.1.2 Device Control Variables The
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57.2.1 Query EZN Parameters There a
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CHAPTER FIFTYEIGHT Introduction to
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On an HP700, this requires the foll
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activated window receives graphic o
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58.9 Color Table ezcoltb(indlo,indh
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the first argument contains the nam
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CHAPTER FIFTYNINE List of Subroutin
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iws integer, the workstation id ass
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arg1 character*(*), the action-comm
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v1, v2, v3, v4 real(Size4), xmin, x
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subroutine ezcdobox(boxid) Descript
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Description Perform frame advance i
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59.25 ezcps Calling Sequence subrou
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Procedure The routine checks for th
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For the action command “off”: D
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Part V Writing Basis Programs, A Ma
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334
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2. Compile the resulting output, pr
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emove Binaries files such as object
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which is a record of how the code s
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pck remove pck build regardless of
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delete(name) Delete variable name f
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Path A blank delimited list of dire
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List List suffix Profile Targets Li
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63.14 Directory Group A Directory G
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RULE/ENDRULE Text between RULE and
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Name Name of executable. Defaults t
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mycode/ source code for mycode myco
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358
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nz=100 # number of zones nt=100 # n
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65.6 Changing to Dynamic Memory We
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364
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1. Write a VDF 2. Setup the configu
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Here is a simple file for our foo c
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gives Configure Package a.m b.m c.m
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372
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374
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Variables which are not declared ar
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378
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380
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x(N) real [cm] /N*0./ # x holds len
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emoved. This enables you to insert
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• attredit(jout,attribute) writes
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70.7 Compileas Option compileas(dim
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scaled(x:real; scaleg:real) real fu
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} # version 1.0 **** Group1: x inte
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is the same as the package belongin
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The document “MPPL Reference Manu
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398
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Let us first examine the components
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71.2.3 Array Assignment Statements
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This indicates that one package, na
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• Warnings. These include attempt
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underscore in the variable descript
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integer allot external allot ... if
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Creates a local dynamic array that
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iunit should be the unit number of
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pathadd An alternative to specifyin
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subroutine basiserr return end 72.4
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Varname character variable big enou
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This editorial was written in 1984
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Function parfind looks for a variab
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variable) are evaluated, is under u
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a variable as originally dimensione
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Efficiency comes into play when you
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call actor(npack,jvar,name,typecode
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arg get name len = arg get name(iar
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Dynamic(cy, complex, 1) ! complex i
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indxx = indxx+1 indxy = indxy+1 end
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e set to a positive integer (whose
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yc(neqc) _real #current values of s
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comments(icom) = "Comments about x
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446
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CHAPTER SEVENTYFOUR Basis Package L
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CHAPTER SEVENTYFIVE BES: Bessel Fun
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CHAPTER SEVENTYSIX CTL: Package Con
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76.5 Adding CTL to Your Program Thi
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CHAPTER SEVENTYSEVEN FFT: Fast Four
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CHAPTER SEVENTYEIGHT FIT: Polynomia
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CHAPTER SEVENTYNINE The History Pac
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4. The numerical priority associate
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4. Change the tag priority. tagprio
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79.5 Dumping and Restarting All the
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79.8.2 How to deal with fancy names
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For further examples see the test r
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CHAPTER EIGHTY PFB Package 80.1 Sum
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openg file00 file03 Please note tha
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If no file is open for read, the ar
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Description The writef command work
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create mydump write all call pfbasa
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80.5.2 File Families The integer fu
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• pfbdcyc informs PFB of name of
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pfbjc(n:integer;fileid:integer) int
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CHAPTER EIGHTYONE SVD: Singular Val
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CHAPTER EIGHTYTWO TIM: Interrupt Ti
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CHAPTER EIGHTYTHREE RNG: Random Num
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Part VII MPPL Reference Manual 495
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constructs may be added to existing
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This option may be repeated. Carefu
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CHAR_PER_WORD COMPILER DEFAULT DONE
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MPPL macros have the following feat
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84.4.5 Macro Translation When a mac
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if (x.ne.0) go to 23000 write(6,230
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Errprint Macro The Errprint macro i
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include filename The include macro
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MPPL error messages are written bot
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How the Statement Processor Sees Ke
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do/enddo MPPL allows a do/enddo loo
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where n is an integer that specifie
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if ( ierr > 0 ) call goof or if ( i
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84.7 Sample Input File Showing Majo
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# FOR/ENDFOR # has three arguments
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# SELECT allows you to test an inte
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function boom(x) c return 1, 0, -1
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do ... if (condition) exit enddo Wh
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534
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activate device;device activate. .
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asurg . . . . . . . . . . . . . . .
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variable attribute . . . . . . . .
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dotted . . . . . . . . . . . . . .
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fillmesh color keys . . . . . . . .
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initialize . . . . . . . . . . . .
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plotting . . . . . . . . . . . . .
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execution . . . . . . . . . . . . .
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angex . . . . . . . . . . . . . . .
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spanl;Built-in Functions spanl . .
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V variable description file . . . .
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