phplot.php

每个RFC 3261信息头有一个相应的存取标识. 但是,许多信息头拥有同样的形式。 例如。To和From的信息头都是由显示名和一个URI组成。 To和From信息头用来管理与处理NameAddr实例的

<?php
/*
  $Id: phplot.php,v 1.2 2003/06/20 16:23:08 hpdl Exp $

  osCommerce, Open Source E-Commerce Solutions
  http://www.oscommerce.com

  Copyright (c) 2003 osCommerce

  Released under the GNU General Public License

  PHPLOT 4.4.6 Copyright (c) 1998-2001 Afan Ottenheimer
*/

class PHPlot{

	var $is_inline = 0;			//0 = Sends headers, 1 = sends just raw image data
	var $browser_cache = '1';	// 0 = Sends headers for browser to not cache the image, (i.e. 0 = don't let browser cache image)
									// (only if is_inline = 0 also)
	var $session_set = '';		//Do not change
	var $scale_is_set = '';		//Do not change
	var $draw_plot_area_background = '';

	var $image_width;	//Total Width in Pixels 
	var $image_height; 	//Total Height in Pixels
	var $image_border_type = ''; //raised, plain, ''
	var $x_left_margin;
	var $y_top_margin;
	var $x_right_margin;
	var $y_bot_margin;
	var $plot_area = array(5,5,600,400);
	var $x_axis_position = 0;	//Where to draw the X_axis (world coordinates)
	var $y_axis_position = '';  //Leave blank for Y axis at left of plot. (world coord.)
	var $xscale_type = 'linear';  //linear or log
	var $yscale_type = 'linear';

//Use for multiple plots per image
	var $print_image = 1;  //Used for multiple charts per image. 

//Fonts
	var $use_ttf  = 0;		  //Use TTF fonts (1) or not (0)
	var $font_path = './';  //To be added 
	var $font = './benjamingothic.ttf';

	///////////Fonts: Small/Generic
	var $small_ttffont_size = 12; //
	//non-ttf
	var $small_font = 2; // fonts = 1,2,3,4 or 5
	var $small_font_width = 6.0; // width in pixels (2=6,3=8,4=8)
	var $small_font_height = 8.0; // height in pixels (2=8,3=10,4=12)

	//////////   Fonts:Title
	var $title_ttffont = './benjamingothic.ttf';
	var $title_ttffont_size = 14;
	var $title_angle= 0;
	//non-ttf
	var $title_font = '4'; // fonts = 1,2,3,4,5

	//////////////  Fonts:Axis
	var $axis_ttffont = './benjamingothic.ttf';
	var $axis_ttffont_size = 8;
	var $x_datalabel_angle = 0;
	//non-ttf
	var $axis_font = 2;

	////////////////Fonts:Labels of Data
	var $datalabel_font = '2';

	//////////////// Fonts:Labels (Axis Titles)
	var $x_label_ttffont = './benjamingothic.ttf';
	var $x_label_ttffont_size = '12';
	var $x_label_angle = '0';

	var $y_label_ttffont = './benjamingothic.ttf';
	var $y_label_ttffont_size = '12';
	var $y_label_angle = 90;
	var $y_label_width = '';

//Formats
	var $file_format = 'png';
	var $file_name = '';  //For output to a file instead of stdout

//Plot Colors
	var $shading = 0;
	var $color_array = 1;	//1 = include small list
							//2 = include large list
							//array =  define your own color translation. See rgb.inc.php and SetRGBArray
	var $bg_color;
	var $plot_bg_color;
	var $grid_color;
	var $light_grid_color;
	var $tick_color;
	var $title_color;
	var $label_color;
	var $text_color;
	var $i_light = '';

//Data
	var $data_type = 'text-data'; //text-data, data-data-error, data-data 
	var $plot_type= 'linepoints'; //bars, lines, linepoints, area, points, pie, thinbarline
	var $line_width = 2;
	var $line_style = array('solid','solid','solid','dashed','dashed','solid'); //Solid or dashed lines

	var $data_color = ''; //array('blue','green','yellow',array(0,0,0));
	var $data_border_color = '';

	var $label_scale_position = '.5';  //1 = top, 0 = bottom
	var $group_frac_width = '.7'; //value from 0 to 1 = width of bar
	var $bar_width_adjust = '1'; //1 = bars of normal width, must be > 0

	var $point_size = 10;
	var $point_shape = 'diamond'; //rect,circle,diamond,triangle,dot,line,halfline
	var $error_bar_shape = 'tee'; //tee, line
	var $error_bar_size = 5; //right left size of tee
	var $error_bar_line_width = ''; //If set then use it, else use $line_width for thickness
	var $error_bar_color = ''; 
	var $data_values;

	var $plot_border_type = 'full'; //left, none, full
	var $plot_area_width = '';
	var $number_x_points;
	var $plot_min_x; // Max and min of the plot area
	var $plot_max_x= ''; // Max and min of the plot area
	var $plot_min_y= ''; // Max and min of the plot area
	var $plot_max_y = ''; // Max and min of the plot area
	var $min_y = '';
	var $max_y = '';
	var $max_x = 10;  //Must not be = 0;
	var $y_precision = '1';
	var $x_precision = '1';
	var $si_units = '';

//Labels
	var $draw_data_labels = '0';  
	var $legend = '';  //an array
	var $legend_x_pos = '';
	var $legend_y_pos = '';
	var $title_txt = "";
	var $y_label_txt = '';
	var $x_label_txt = "";

//DataAxis Labels (on each axis)
	var $y_grid_label_type = 'data';    //data, none, time, other
	var $y_grid_label_pos = 'plotleft'; //plotleft, plotright, yaxis, both
	var $x_grid_label_type = 'data';    //data, title, none, time, other
	var $draw_x_data_labels = '';       // 0=false, 1=true, ""=let program decide 
	var $x_time_format = "%H:%m:%s";    //See http://www.php.net/manual/html/function.strftime.html
	var $x_datalabel_maxlength = 10;	

//Tick Formatting
	var $tick_length = '10';   //pixels: tick length from axis left/downward
	//tick_length2 to be implemented
	//var $tick_length2 = '';  //pixels: tick length from axis line rightward/upward
	var $draw_vert_ticks = 1;  //1 = draw ticks, 0 = don't draw ticks
	var $num_vert_ticks = '';
	var $vert_tick_increment=''; //Set num_vert_ticks or vert_tick_increment, not both.
	var $vert_tick_position = 'both'; //plotright=(right of plot only), plotleft=(left of plot only), 
								//both = (both left and right of plot), yaxis=(crosses y axis)
	var $horiz_tick_increment=''; //Set num_horiz_ticks or horiz_tick_increment, not both.
	var $num_horiz_ticks='';
	var $skip_top_tick = '0';
	var $skip_bottom_tick = '0';

//Grid Formatting
	var $draw_x_grid = 0;
	var $draw_y_grid = 1;


//BEGIN CODE
//////////////////////////////////////////////////////
	//Constructor: Setup Img pointer, Colors and Size of Image
	function PHPlot($which_width=600,$which_height=400,$which_output_file="",$which_input_file="") {

		$this->SetRGBArray('2'); 
		$this->background_done = 0; //Set to 1 after background image first drawn

		if ($which_output_file != "") { $this->SetOutputFile($which_output_file);  };

		if ($which_input_file != "") { 
			$this->SetInputFile($which_input_file) ; 
		} else { 
			$this->SetImageArea($which_width, $which_height);
			$this->InitImage();
		}

		if ( ($this->session_set == 1) && ($this->img == "") ) {  //For sessions
			//Do nothing
		} else { 
			$this->SetDefaultColors();
		}

		$this->SetIndexColors();

	}
	    
	//Set up the image and colors
	function InitImage() {
		//if ($this->img) { 
		//	ImageDestroy($this->img);
		//}
		$this->img = ImageCreate($this->image_width, $this->image_height);
		return true;
	}

	function SetBrowserCache($which_browser_cache) {  //Submitted by Thiemo Nagel
		$this->browser_cache = $which_browser_cache;
		return true;
	}

	function SetPrintImage($which_pi) {
		$this->print_image = $which_pi;
		return true;
	}

	function SetIsInline($which_ii) {
		$this->is_inline = $which_ii;
		return true;
	}

	function SetUseTTF($which_ttf) {
		$this->use_ttf = $which_ttf;
		return true;
	}

	function SetTitleFontSize($which_tfs) {
		//TTF
		$this->title_ttffont_size = $which_tfs; //pt size

		//Non-TTF settings
		if (($which_tfs > 5) && (!$this->use_ttf)) {
			$this->DrawError('Non-TTF font size must be 1,2,3,4 or 5');
			return false;
		} else {
			$this->title_font = $which_tfs;
			//$this->title_font_height = ImageFontHeight($which_tfs) // height in pixels 
			//$this->title_font_width = ImageFontWidth($which_tfs); // width in pixels 
		}
		return true;
	}

	function SetLineStyles($which_sls){
		$this->line_style = $which_sls;
		return true;
	}

	function SetLegend($which_leg){
		if (is_array($which_leg)) { 
			$this->legend = $which_leg;
			return true;
		} else { 
			$this->DrawError('Error: SetLegend argument must be an array');
			return false;
		}
	}

	function SetLegendPixels($which_x,$which_y,$which_type) { 
		//which_type not yet used
		$this->legend_x_pos = $which_x;
		$this->legend_y_pos = $which_y;
		return true;
	}

	function SetLegendWorld($which_x,$which_y,$which_type='') { 
		//which_type not yet used
		//Must be called after scales are set up. 
		if ($this->scale_is_set != 1) { $this->SetTranslation(); };
		$this->legend_x_pos = $this->xtr($which_x);
		$this->legend_y_pos = $this->ytr($which_y);
		return true;
	}
/* ***************************************
	function SetFileFormat($which_file_format) { //Only works with PHP4
		$asked = strtolower($which_file_format);
		if( $asked =="jpg" || $asked =="png" || $asked =="gif" || $asked =="wbmp" ) {
			if( $asked=="jpg" && !(imagetypes() & IMG_JPG) )
				return false;
			elseif( $asked=="png" && !(imagetypes() & IMG_PNG) ) 
				return false;
			elseif( $asked=="gif" && !(imagetypes() & IMG_GIF) ) 	
				return false;
			elseif( $asked=="wbmp" && !(imagetypes() & IMG_WBMP) ) 	
				return false;
			else {
				$this->img_format=$asked;
				return true;
			}
		}
		else
			return false;
	}	

*************************************** */
	function SetFileFormat($which_file_format) {
	//eventually test to see if that is supported - if not then return false
		$asked = strtolower(trim($which_file_format));
		if( ($asked=='jpg') || ($asked=='png') || ($asked=='gif') || ($asked=='wbmp') ) {
			$this->file_format = $asked;
			return true;
		} else {
			return false;
		}
	}

	function SetInputFile($which_input_file) { 
		//$this->SetFileFormat($which_frmt);
		$size = GetImageSize($which_input_file);
		$input_type = $size[2]; 

		switch($input_type) {  //After SetFileFormat is in lower case
			case "1":
				$im = @ImageCreateFromGIF ($which_input_file);
				if (!$im) { // See if it failed 
					$this->PrintError("Unable to open $which_input_file as a GIF");
					return false;
				}
			break;
			case "3":
				$im = @ImageCreateFromPNG ($which_input_file); 
				if (!$im) { // See if it failed 
					$this->PrintError("Unable to open $which_input_file as a PNG");
					return false;
				}
			break;
			case "2":
				$im = @ImageCreateFromJPEG ($which_input_file); 
				if (!$im) { // See if it failed 
					$this->PrintError("Unable to open $which_input_file as a JPG");
					return false;
				}
			break;
			default:
				$this->PrintError('Please select wbmp,gif,jpg, or png for image type!');
				return false;
			break;
		}

		//Get Width and Height of Image
		$this->SetImageArea($size[0],$size[1]);

		$this->img = $im;

		return true;

	}

	function SetOutputFile($which_output_file) { 
		$this->output_file = $which_output_file;
		return true;
	}

	function SetImageArea($which_iw,$which_ih) {
		//Note this is now an Internal function - please set w/h via PHPlot()
		$this->image_width = $which_iw;
		$this->image_height = $which_ih;

		return true;
	}


	function SetYAxisPosition($which_pos) {
		$this->y_axis_position = $which_pos;
		return true;
	}
	function SetXAxisPosition($which_pos) {
		$this->x_axis_position = $which_pos;
		return true;
	}
	function SetXTimeFormat($which_xtf) {
		$this->x_time_format = $which_xtf;
		return true;
	}
	function SetXDataLabelMaxlength($which_xdlm) { 
		if ($which_xdlm >0 ) { 
			$this->x_datalabel_maxlength = $which_xdlm;
			return true;
		} else { 
			return false;
		}
	}
	function SetXDataLabelAngle($which_xdla) { 
		$this->x_datalabel_angle = $which_xdla;
		return true;
	}
	function SetXScaleType($which_xst) { 
		$this->xscale_type = $which_xst;
		return true;
	}
	function SetYScaleType($which_yst) { 
		$this->yscale_type = $which_yst;
		if ($this->x_axis_position <= 0) { 
			$this->x_axis_position = 1;
		}
		return true;
	}

	function SetPrecisionX($which_prec) {
		$this->x_precision = $which_prec;
		return true;
	}
	function SetPrecisionY($which_prec) {
		$this->y_precision = $which_prec;
		return true;
	}


	function SetIndexColors() { //Internal Method called to set colors and preserve state
		//These are the colors of the image that are used. They are initialized
		//to work with sessions and PHP. 

		$this->ndx_i_light = $this->SetIndexColor($this->i_light);
		$this->ndx_i_dark  = $this->SetIndexColor($this->i_dark);