phplot.php

PHP 建站工具,CMS系统,类似与oscommerce

		return true;
	}

	function SetLabelScalePosition($which_blp) {
		//0 to 1
		$this->label_scale_position = $which_blp;
		return true;
	}

	function SetErrorBarSize($which_ebs) {
		//in pixels
		$this->error_bar_size = $which_ebs;
		return true;
	}

	function SetErrorBarShape($which_ebs) {
		//in pixels
		$this->error_bar_shape = $which_ebs;
		return true;
	}

	function SetPointShape($which_pt) {
		//in pixels
		$this->point_shape = $which_pt;
		return true;
	}

	function SetPointSize($which_ps) {
		//in pixels
		SetType($which_ps,'integer');
		$this->point_size = $which_ps;

		if ($this->point_shape == "diamond" or $this->point_shape == "triangle") {
			if ($this->point_size % 2 != 0) {
				$this->point_size++;
			}
		}
		return true;
	}

	function SetDataType($which_dt) {
		//The next three lines are for past compatibility.
		if ($which_dt == "text-linear") { $which_dt = "text-data"; };
		if ($which_dt == "linear-linear") { $which_dt = "data-data"; };
		if ($which_dt == "linear-linear-error") { $which_dt = "data-data-error"; };

		$this->data_type = $which_dt; //text-data, data-data, data-data-error
		return true;
	}

	function SetDataValues($which_dv) {
		$this->data_values = $which_dv;
//echo $this->data_values
		return true;
	}

//////////////COLORS
	function SetRGBArray ($which_color_array) { 
		if ( is_array($which_color_array) ) { 
			//User Defined Array
			$this->rgb_array = $which_color_array;
			return true;
		} elseif ($which_color_array == 2) { //Use the small predefined color array
		$this->rgb_array = array(
			"white"			=> array(255, 255, 255),
			"snow"			=> array(255, 250, 250),
			"PeachPuff"		=> array(255, 218, 185),
			"ivory"			=> array(255, 255, 240),
			"lavender"		=> array(230, 230, 250),
			"black"			=> array(  0,   0,   0),
			"DimGrey"			=> array(105, 105, 105),
			"gray"			=> array(190, 190, 190),
			"grey"			=> array(190, 190, 190),
			"navy"			=> array(  0,   0, 128),
			"SlateBlue"			=> array(106,  90, 205),
			"blue"			=> array(  0,   0, 255),
			"SkyBlue"			=> array(135, 206, 235),
			"cyan"			=> array(  0, 255, 255),
			"DarkGreen"			=> array(  0, 100,   0),
			"green"			=> array(  0, 255,   0),
			"YellowGreen"			=> array(154, 205,  50),
			"yellow"			=> array(255, 255,   0),
			"orange"			=> array(255, 165,   0),
			"gold"			=> array(255, 215,   0),
			"peru"			=> array(205, 133,  63),
			"beige"			=> array(245, 245, 220),
			"wheat"			=> array(245, 222, 179),
			"tan"			=> array(210, 180, 140),
			"brown"			=> array(165,  42,  42),
			"salmon"			=> array(250, 128, 114),
			"red"			=> array(255,   0,   0),
			"pink"			=> array(255, 192, 203),
			"maroon"			=> array(176,  48,  96),
			"magenta"			=> array(255,   0, 255),
			"violet"			=> array(238, 130, 238),
			"plum"			=> array(221, 160, 221),
			"orchid"			=> array(218, 112, 214),
			"purple"			=> array(160,  32, 240),
			"azure1"			=> array(240, 255, 255),
			"aquamarine1"		=> array(127, 255, 212)
			);
			return true;
		} elseif ($which_color_array == 1)  { 
			include("./rgb.inc.php"); //Get large $ColorArray
			$this->rgb_array = $RGBArray;
		} else { 
			$this->rgb_array = array("white" =>array(255,255,255), "black" => array(0,0,0));
			exit;
		}

		return true;
	}

	function SetColor($which_color) { 
		//obsoleted by SetRGBColor
		SetRgbColor($which_color);
		return true;
	}

	function SetIndexColor($which_color) { //Color is passed in as anything
  		list ($r, $g, $b) = $this->SetRgbColor($which_color);  //Translate to RGB
		$index = ImageColorExact($this->img, $r, $g, $b);
		if ($index == -1) {
	  			//return ImageColorAllocate($this->img, $r, $g, $b);
	  			//return ImageColorClosest($this->img, $r, $g, $b);
	  			return ImageColorResolve($this->img, $r, $g, $b); //requires PHP 3.0.2 and later
 		} else {
	  			return $index;
  		}
	}
	
	function SetTransparentColor($which_color) { 
		ImageColorTransparent($this->img,$this->SetIndexColor($which_color));
		return true;
	}

	function SetRgbColor($color_asked) {
		//Returns an array in R,G,B format 0-255
		if ($color_asked == "") { $color_asked = array(0,0,0); };

		if ( count($color_asked) == 3 ) { //already array of 3 rgb
	   		$ret_val =  $color_asked;
		} else { // is asking for a color by string
			if(substr($color_asked,0,1) == "#") {  //asking in #FFFFFF format. 
				$ret_val =  array(hexdec(substr($color_asked,1,2)), hexdec(substr($color_asked,3,2)), hexdec(substr($color,5,2)));
			} else { 
				$ret_val =  $this->rgb_array[$color_asked];
			}
		}
		return $ret_val;
	}

	function SetDataColors($which_data,$which_border) {
		//Set the data to be displayed in a particular color
		if (!$which_data) {
			$which_data = array(array(0,255,0),array(0,0,248),'yellow',array(255,0,0),'orange');
			$which_border = array('black');
		}

		$this->data_color = $which_data;  //an array
		$this->data_border_color = $which_border;  //an array

		unset($this->ndx_data_color);
		reset($this->data_color);  //data_color can be an array of colors, one for each thing plotted
		//while (list(, $col) = each($this->data_color)) 
		$i = 0;
		while (list(, $col) = each($which_data)) {
			$this->ndx_data_color[$i] = $this->SetIndexColor($col);
			$i++;
		}

		// border_color
		//If we are also going to put a border on the data (bars, dots, area, ...)
		//	then lets also set a border color as well.
		//foreach($this->data_border_color as $col) 
		unset($this->ndx_data_border_color);
		reset($this->data_border_color);
		$i = 0;
		while (list(, $col) = each($this->data_border_color)) {
			$this->ndx_data_border_color[$i] = $this->SetIndexColor($col);
			$i++;
		}

		//Set color of the error bars to be that of data if not already set. 
		if (!$this->error_bar_color) { 
				reset($which_data);
				$this->SetErrorBarColors($which_data);
		}

		return true;

	} //function SetDataColors

	function SetErrorBarColors($which_data) {

	 //Set the data to be displayed in a particular color

	 if ($which_data) {
		$this->error_bar_color = $which_data;  //an array
		unset($this->ndx_error_bar_color);
		reset($this->error_bar_color);  //data_color can be an array of colors, one for each thing plotted
		$i = 0;
		while (list(, $col) = each($this->error_bar_color)) {
			$this->ndx_error_bar_color[$i] = $this->SetIndexColor($col);
			$i++;
		}
		return true;
	  }
	  return false;
	} //function SetErrorBarColors


	function DrawPlotBorder() {
		switch ($this->plot_border_type) {
			case "left" :
				ImageLine($this->img, $this->plot_area[0],$this->ytr($this->plot_min_y),
					$this->plot_area[0],$this->ytr($this->plot_max_y),$this->ndx_grid_color);
			break;
			case "none":
				//Draw No Border
			break;
			default:
				ImageRectangle($this->img, $this->plot_area[0],$this->ytr($this->plot_min_y),
					$this->plot_area[2],$this->ytr($this->plot_max_y),$this->ndx_grid_color);
			break;
		}
		$this->DrawYAxis();
		$this->DrawXAxis();
		return true;
	}


	function SetHorizTickIncrement($which_ti) {
		//Use either this or NumHorizTicks to set where to place x tick marks
		if ($which_ti) {
			$this->horiz_tick_increment = $which_ti;  //world coordinates
		} else {
			if (!$this->max_x) {
				$this->FindDataLimits();  //Get maxima and minima for scaling
			}
			//$this->horiz_tick_increment = ( ceil($this->max_x * 1.2) - floor($this->min_x * 1.2) )/10;
			$this->horiz_tick_increment =  ($this->plot_max_x  - $this->plot_min_x  )/10;
		}
		$this->num_horiz_ticks = ''; //either use num_vert_ticks or vert_tick_increment, not both
		return true;
	}

	function SetDrawVertTicks($which_dvt) {
		$this->draw_vert_ticks = $which_dvt;
		return true;
	} 

	function SetVertTickIncrement($which_ti) {
		//Use either this or NumVertTicks to set where to place y tick marks
		if ($which_ti) {
			$this->vert_tick_increment = $which_ti;  //world coordinates
		} else {
			if (!$this->max_y) {
				$this->FindDataLimits();  //Get maxima and minima for scaling
			}
			//$this->vert_tick_increment = ( ceil($this->max_y * 1.2) - floor($this->min_y * 1.2) )/10;
			$this->vert_tick_increment =  ($this->plot_max_y  - $this->plot_min_y  )/10;
		}
		$this->num_vert_ticks = ''; //either use num_vert_ticks or vert_tick_increment, not both
		return true;
	}

	function SetNumHorizTicks($which_nt) {
		$this->num_horiz_ticks = $which_nt;
		$this->horiz_tick_increment = '';  //either use num_horiz_ticks or horiz_tick_increment, not both
		return true;
	}

	function SetNumVertTicks($which_nt) {
		$this->num_vert_ticks = $which_nt;
		$this->vert_tick_increment = '';  //either use num_vert_ticks or vert_tick_increment, not both
		return true;
	}
	function SetVertTickPosition($which_tp) {
		$this->vert_tick_position = $which_tp; //plotleft, plotright, both, yaxis
		return true;
	}
	function SetSkipBottomTick($which_sbt) {
		$this->skip_bottom_tick = $which_sbt;
		return true;
	}

	function SetTickLength($which_tl) {
		$this->tick_length = $which_tl;
		return true;
	}

	function DrawYAxis() { 
		//Draw Line at left side or at this->y_axis_position
		if ($this->y_axis_position != "") { 
			$yaxis_x = $this->xtr($this->y_axis_position);
		} else { 
			$yaxis_x = $this->plot_area[0];
		}

		ImageLine($this->img, $yaxis_x, $this->plot_area[1], 
			$yaxis_x, $this->plot_area[3], $this->ndx_grid_color);
			//$yaxis_x, $this->plot_area[3], 9);

		if ($this->draw_vert_ticks == 1) { 
			$this->DrawVerticalTicks();
		}

	} //function DrawYAxis

	function DrawXAxis() {
		//Draw Tick and Label for Y axis
		$ylab =$this->FormatYTickLabel($this->x_axis_position);
		if ($this->skip_bottom_tick != 1) { 
			$this->DrawVerticalTick($ylab,$this->x_axis_position);
		}

		//Draw X Axis at Y=$x_axis_postion
		ImageLine($this->img,$this->plot_area[0]+1,$this->ytr($this->x_axis_position),
				$this->xtr($this->plot_max_x)-1,$this->ytr($this->x_axis_position),$this->ndx_tick_color);

		//X Ticks and Labels
		if ($this->data_type != 'text-data') { //labels for text-data done at data drawing time for speed.
			$this->DrawHorizontalTicks();
		}
		return true;
	}

	function DrawHorizontalTicks() {
		//Ticks and lables are drawn on the left border of PlotArea.
		//Left Bottom
		ImageLine($this->img,$this->plot_area[0],
				$this->plot_area[3]+$this->tick_length,
				$this->plot_area[0],$this->plot_area[3],$this->ndx_tick_color);

		switch ($this->x_grid_label_type) {
			case "title":
				$xlab = $this->data_values[0][0];
			break;
			case "data":
				$xlab = number_format($this->plot_min_x,$this->x_precision,".",",") . "$this->si_units";
			break;
			case "none":
				$xlab = '';
			break;
			case "time":  //Time formatting suggested by Marlin Viss
				$xlab = strftime($this->x_time_format,$this->plot_min_x);
			break;
			default:
				//Unchanged from whatever format is passed in
				$xlab = $this->plot_min_x;
			break;
		}

		if ($this->x_datalabel_angle == 90) { 
			$xpos =  $this->plot_area[0] - $this->small_font_height/2;
			$ypos = ( $this->small_font_width*strlen($xlab) + $this->plot_area[3] + $this->small_font_height);
			ImageStringUp($this->img, $this->small_font,$xpos, $ypos, $xlab, $this->ndx_text_color);
		} else {
			$xpos = $this->plot_area[0] - $this->small_font_width*strlen($xlab)/2 ;
			$ypos = $this->plot_area[3] + $this->small_font_height;
			ImageString($this->img, $this->small_font,$xpos, $ypos, $xlab, $this->ndx_text_color);
		}

		//Will be changed to allow for TTF fonts in data as well.
		//$this->DrawText($this->small_font, $this->x_datalabel_angle, $xpos, $ypos, $this->ndx_title_color, '', $xlab); 

		//Top

		if ($this->horiz_tick_increment) {
			$delta_x = $this->horiz_tick_increment;
		} elseif ($this->num_horiz_ticks) {
			$delta_x = ($this->plot_max_x - $this->plot_min_x) / $this->num_horiz_ticks;
		} else {
			$delta_x =($this->plot_max_x - $this->plot_min_x) / 10 ;
		}

		$i = 0;
		$x_tmp = $this->plot_min_x;
		SetType($x_tmp,'double');

		while ($x_tmp <= $this->plot_max_x){
			//$xlab = sprintf("%6.1f %s",$min_x,$si_units[0]);  //PHP2 past compatibility
			switch ($this->x_grid_label_type) {
				case "title":
					$xlab = $this->data_values[$x_tmp][0];
				break;
				case "data":
					$xlab = number_format($x_tmp,$this->x_precision,".",",") . "$this->si_units";
				break;
				case "none":
					$xlab = '';
				break;
				case "time":  //Time formatting suggested by Marlin Viss
					$xlab = strftime($this->x_time_format,$x_tmp);