duxiyu's articles:

Items(44) /5 Next >> Last >|

Use the device fonts for Ytitle on screen 7 38 (11/11/2009 8:56:28 PM) comp.lang.idl-pvwave Hi, everyone! I meet a problem about using the device ('Windows') fonts for Ytitle on screen. For example, !P.FONT = 0 DEVICE, SET_FONT='Microsoft Yahei' PLOT, INDGEN(11), Xtitle='X Title', Ytitle='Y... duxiyu

Theie is a small problem about HISTOPLOT in Coyote's libraries 5 26 (10/16/2009 1:18:00 PM) comp.lang.idl-pvwave Hi, erveryone. On IDL 7.1.1 under Windows, there seems to be a small problem about the procedure HISTOPLOT. For example, Histoplot, Dist(256), xrange=[0, 187] Histoplot, Dist(256), xrange=[0, 188] ... duxiyu

Use the transparent shadow to mark the special region 0 50 (10/5/2009 2:09:14 PM) comp.lang.idl-pvwave Hi, all. There is a time series D(T). "Plot, T, D" gives its figure. In this figure, I want to use the tansparent shadow to mark the regions in which the values of D is less than a constant (for example, 1). I... duxiyu

How to calculate the abscissa values for the given vertical values 8 81 (10/5/2009 8:56:20 AM) comp.lang.idl-pvwave Hi, all. I want to calculate the abscissa values for the given vertical values. For example, x = findgen(1000)/1000*4*pi y = cos(x) I want to get the abscissa values for y=0. For this example, the re... duxiyu

Is it possible to set a string to a veriable name? 2 47 (9/4/2009 11:36:30 AM) comp.lang.idl-pvwave I have an array of string and want to use its elements as veriable names in a function. How can I do? Is there any simple code to replace the ones below? For example: STR = ['a', 'b', 'c', 'd', 'e'] for i=0, ... duxiyu

How to create a transparent shadow on the PostScript device? 6 50 (8/10/2009 12:28:33 PM) comp.lang.idl-pvwave Hi, all. There is a method to create a transparent polygen in David's website. http://www.dfanning.com/code_tips/transpoly.html But it seems that it does not work on the PS device. Is there anyone who can giv... duxiyu

Question about the installation of IDL AACGM DLM 4 62 (7/31/2009 8:30:10 AM) comp.lang.idl-pvwave Hi, all. IDL AACGM DLM is a Dynamic Link Module (DLM) for converting between geographic and altitude-adjusted corrected geomagnetic (AACGM) coordinates. http://dysprosium.jhuapl.edu/idl_aacgm/ I want to insta... duxiyu

Fourier analysis of the Data with some gaps 5 45 (4/13/2009 10:26:06 AM) comp.lang.idl-pvwave Dear all, I want to take FFT on the data. But there are some shorts data gaps during this data interval. How should I deal with these gaps? Best regards, jdu ... duxiyu

A question about cross-spectral analysis 1 50 (4/13/2009 10:19:48 AM) comp.lang.idl-pvwave Dear all, I want to use the method in Means et al., JGR, 1972 to analyse some waves. I have a 3 component signal with components, x, y and z. How do I get the covariance matrix? I searched the group for the t... duxiyu

Calculate the included angle between two vectors 4 84 (4/9/2009 2:14:29 PM) comp.lang.idl-pvwave Is there a function which can calculate the included angle between two three-dimensional vectors? jdu ... duxiyu

duxiyu's replies:

Items(31) /4 Next >> Last >|

Some errors about 7.0.3 update 11 29 (1/6/2009 1:58:56 PM) comp.lang.idl-pvwave Hi, all. I want to update my IDL from 7.0.0 to 7.0.3. But when I used "Software Updates" in Help menu, it didn't find the the available updates about 7.0.3. Is there offline updater for 7.0.3 which can be dow... duxiyu (97)

Help! Can not land David website. 11 39 (1/10/2009 2:38:59 PM) comp.lang.idl-pvwave David: I am a IDL user from China. Recently, I can not land your website "http://www.dfanning.com/", and lots of other people have the same problem. Please help me. Thanks very much! Dave ... daikan1998 (38)

=?ISO-8859-1?Q?Is_there_a_function_to_calculate_the_determinant_of_?= =?ISO-8859-1?Q?a_N=D7N_matrix=3F?= 6 27 (4/9/2009 1:06:04 PM) comp.lang.idl-pvwave Hi, all. I want to calculate the value of the determinant which is an array D [N, N]. Is there a built-in functions to do it? Best regards, jdu ... duxiyu (97)

Calculate the included angle between two vectors 4 84 (4/9/2009 2:14:29 PM) comp.lang.idl-pvwave Is there a function which can calculate the included angle between two three-dimensional vectors? jdu ... duxiyu (97)

Fourier analysis of the Data with some gaps 5 45 (4/13/2009 10:26:06 AM) comp.lang.idl-pvwave Dear all, I want to take FFT on the data. But there are some shorts data gaps during this data interval. How should I deal with these gaps? Best regards, jdu ... duxiyu (97)

Question about the installation of IDL AACGM DLM 4 62 (7/31/2009 8:30:10 AM) comp.lang.idl-pvwave Hi, all. IDL AACGM DLM is a Dynamic Link Module (DLM) for converting between geographic and altitude-adjusted corrected geomagnetic (AACGM) coordinates. http://dysprosium.jhuapl.edu/idl_aacgm/ I want to insta... duxiyu (97)

How to create a transparent shadow on the PostScript device? 6 50 (8/10/2009 12:28:33 PM) comp.lang.idl-pvwave Hi, all. There is a method to create a transparent polygen in David's website. http://www.dfanning.com/code_tips/transpoly.html But it seems that it does not work on the PS device. Is there anyone who can giv... duxiyu (97)

How to calculate the abscissa values for the given vertical values 8 81 (10/5/2009 8:56:20 AM) comp.lang.idl-pvwave Hi, all. I want to calculate the abscissa values for the given vertical values. For example, x = findgen(1000)/1000*4*pi y = cos(x) I want to get the abscissa values for y=0. For this example, the re... duxiyu (97)

Theie is a small problem about HISTOPLOT in Coyote's libraries 5 26 (10/16/2009 1:18:00 PM) comp.lang.idl-pvwave Hi, erveryone. On IDL 7.1.1 under Windows, there seems to be a small problem about the procedure HISTOPLOT. For example, Histoplot, Dist(256), xrange=[0, 187] Histoplot, Dist(256), xrange=[0, 188] ... duxiyu (97)

Use the device fonts for Ytitle on screen 7 38 (11/11/2009 8:56:28 PM) comp.lang.idl-pvwave Hi, everyone! I meet a problem about using the device ('Windows') fonts for Ytitle on screen. For example, !P.FONT = 0 DEVICE, SET_FONT='Microsoft Yahei' PLOT, INDGEN(11), Xtitle='X Title', Ytitle='Y... duxiyu (97)