phplot.php

PHP 建站工具,CMS系统,类似与oscommerce

	}

	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);
		$this->ndx_bg_color= $this->SetIndexColor($this->bg_color);
		$this->ndx_plot_bg_color= $this->SetIndexColor($this->plot_bg_color);

		$this->ndx_title_color= $this->SetIndexColor($this->title_color);
		$this->ndx_tick_color= $this->SetIndexColor($this->tick_color);
		$this->ndx_label_color= $this->SetIndexColor($this->label_color);
		$this->ndx_text_color= $this->SetIndexColor($this->text_color);
		$this->ndx_light_grid_color= $this->SetIndexColor($this->light_grid_color);
		$this->ndx_grid_color= $this->SetIndexColor($this->grid_color);

		reset($this->error_bar_color);  
		unset($ndx_error_bar_color);
		$i = 0; 
		while (list(, $col) = each($this->error_bar_color)) {
		  $this->ndx_error_bar_color[$i] = $this->SetIndexColor($col);
			$i++;
		}
		//reset($this->data_border_color);
		unset($ndx_data_border_color);
		$i = 0;
		while (list(, $col) = each($this->data_border_color)) {
			$this->ndx_data_border_color[$i] = $this->SetIndexColor($col);
			$i++;
		}
		//reset($this->data_color); 
		unset($ndx_data_color);
		$i = 0;
		while (list(, $col) = each($this->data_color)) {
			$this->ndx_data_color[$i] = $this->SetIndexColor($col);
			$i++;
		}

		return true;
	}


	function SetDefaultColors() {

		$this->i_light = array(194,194,194);
		$this->i_dark =  array(100,100,100);
		$this->SetPlotBgColor(array(222,222,222));
		$this->SetBackgroundColor(array(200,222,222)); //can use rgb values or "name" values
		$this->SetLabelColor('black');
		$this->SetTextColor('black');
		$this->SetGridColor('black');
		$this->SetLightGridColor(array(175,175,175));
		$this->SetTickColor('black');
		$this->SetTitleColor(array(0,0,0)); // Can be array or name
		$this->data_color = array('blue','green','yellow','red','orange');
		$this->error_bar_color = array('blue','green','yellow','red','orange');
		$this->data_border_color = array('black');

		$this->session_set = 1; //Mark it down for PHP session() usage.
	}

	function PrintImage() {

		if ( ($this->browser_cache == 0) && ($this->is_inline == 0)) { //Submitted by Thiemo Nagel
			header('Expires: Mon, 26 Jul 1997 05:00:00 GMT');
			header('Last-Modified: ' . gmdate("D, d M Y H:i:s") . 'GMT');
			header('Cache-Control: no-cache, must-revalidate');
			header('Pragma: no-cache');
		}

		switch($this->file_format) {
			case "png":
				if ($this->is_inline == 0) {
					Header('Content-type: image/png');
				}
				if ($this->is_inline == 1 && $this->output_file != "") {
					ImagePng($this->img,$this->output_file);
				} else {
					ImagePng($this->img);
				}
				break;
			case "jpg":
				if ($this->is_inline == 0) {
					Header('Content-type: image/jpeg');
				}
				if ($this->is_inline == 1 && $this->output_file != "") {
					ImageJPEG($this->img,$this->output_file);
				} else {
					ImageJPEG($this->img);
				}
				break;
			case "gif":
				if ($this->is_inline == 0) {
					Header('Content-type: image/gif');
				}
				if ($this->is_inline == 1 && $this->output_file != "") {
					ImageGIF($this->img,$this->output_file);
				} else {
					ImageGIF($this->img);
				}

				break;
			case "wbmp":
				if ($this->is_inline == 0) {
					Header('Content-type: image/wbmp');
				}
				if ($this->is_inline == 1 && $this->output_file != "") {
					ImageWBMP($this->img,$this->output_file);
				} else {
					ImageWBMP($this->img);
				}

				break;
			default:
				$this->PrintError('Please select an image type!<br>');
				break;
		}
		ImageDestroy($this->img);
		return true;
	}


	function DrawBackground() {
		//if ($this->img == "") { $this->InitImage(); };
		if ($this->background_done == 0) { //Don't draw it twice if drawing two plots on one image
			ImageFilledRectangle($this->img, 0, 0,
				$this->image_width, $this->image_height, $this->ndx_bg_color);
			$this->background_done = 1;
		}
		return true;
	}

	function DrawImageBorder() {
		switch ($this->image_border_type) {
			case "raised":
				ImageLine($this->img,0,0,$this->image_width-1,0,$this->ndx_i_light);
				ImageLine($this->img,1,1,$this->image_width-2,1,$this->ndx_i_light);
				ImageLine($this->img,0,0,0,$this->image_height-1,$this->ndx_i_light);
				ImageLine($this->img,1,1,1,$this->image_height-2,$this->ndx_i_light);
				ImageLine($this->img,$this->image_width-1,0,$this->image_width-1,$this->image_height-1,$this->ndx_i_dark);
				ImageLine($this->img,0,$this->image_height-1,$this->image_width-1,$this->image_height-1,$this->ndx_i_dark);
				ImageLine($this->img,$this->image_width-2,1,$this->image_width-2,$this->image_height-2,$this->ndx_i_dark);
				ImageLine($this->img,1,$this->image_height-2,$this->image_width-2,$this->image_height-2,$this->ndx_i_dark);
			break;
			case "plain":
				ImageLine($this->img,0,0,$this->image_width,0,$this->ndx_i_dark);
				ImageLine($this->img,$this->image_width-1,0,$this->image_width-1,$this->image_height,$this->ndx_i_dark);
				ImageLine($this->img,$this->image_width-1,$this->image_height-1,0,$this->image_height-1,$this->ndx_i_dark);
				ImageLine($this->img,0,0,0,$this->image_height,$this->ndx_i_dark);
			break;
			default:
			break;
		}
		return true;
	}

	function SetPlotBorderType($which_pbt) {
		$this->plot_border_type = $which_pbt; //left, none, anything else=full
	}

	function SetImageBorderType($which_sibt) {
		$this->image_border_type = $which_sibt; //raised, plain
	}

	function SetDrawPlotAreaBackground($which_dpab) {
		$this->draw_plot_area_background = $which_dpab;  // 1=true or anything else=false
	}

	function SetDrawDataLabels($which_ddl) {  //Draw next to datapoints
		$this->draw_data_labels = $which_ddl;  // 1=true or anything else=false
	}

	function SetDrawXDataLabels($which_dxdl) {  //Draw on X Axis
		$this->draw_x_data_labels = $which_dxdl;  // 1=true or anything else=false
	}

	function SetDrawYGrid($which_dyg) {
		$this->draw_y_grid = $which_dyg;  // 1=true or anything else=false
	}

	function SetDrawXGrid($which_dxg) {
		$this->draw_x_grid = $which_dxg;  // 1=true or anything else=false
	}

	function SetYGridLabelType($which_yglt) {
		$this->y_grid_label_type = $which_yglt;
		return true;
	}

	function SetXGridLabelType($which_xglt) {
		$this->x_grid_label_type = $which_xglt;
		return true;
	}

	function SetXLabel($xlbl) {
		$this->x_label_txt = $xlbl;
		return true;
	}
	function SetYLabel($ylbl) {
		$this->y_label_txt = $ylbl;
		return true;
	}
	function SetTitle($title) {
		$this->title_txt = $title;
		return true;
	}

	//function SetLabels($xlbl,$ylbl,$title) {
	//	$this->title_txt = $title;
	//	$this->x_label_txt = $xlbl;
	//	$this->y_label_txt = $ylbl;
	//}

	function DrawLabels() {
		$this->DrawTitle();
		$this->DrawXLabel();
		$this->DrawYLabel();
		return true;
	}

	function DrawXLabel() {
		if ($this->use_ttf == 1) { 
			$xpos = $this->xtr(($this->plot_max_x + $this->plot_min_x)/2.0) ;
			$ypos = $this->ytr($this->plot_min_y) + $this->x_label_height/2.0;
			$this->DrawText($this->x_label_ttffont, $this->x_label_angle,
				$xpos, $ypos, $this->ndx_label_color, $this->x_label_ttffont_size, $this->x_label_txt,'center');
		} else { 
			//$xpos = 0.0 - (ImageFontWidth($this->small_font)*strlen($this->x_label_txt)/2.0) + $this->xtr(($this->plot_max_x+$this->plot_min_x)/2.0) ;
			$xpos = 0.0 + $this->xtr(($this->plot_max_x+$this->plot_min_x)/2.0) ;
			$ypos = ($this->ytr($this->plot_min_y) + $this->x_label_height/2);

			$this->DrawText($this->small_font, $this->x_label_angle, 
				$xpos, $ypos, $this->ndx_label_color, "", $this->x_label_txt, 'center');

		}
		return true;
	}

	function DrawYLabel() {
		if ($this->use_ttf == 1) { 
			$size = $this->TTFBBoxSize($this->y_label_ttffont_size, 90, $this->y_label_ttffont, $this->y_label_txt);
			$xpos = 8 + $size[0];
			$ypos = ($size[1])/2 + $this->ytr(($this->plot_max_y + $this->plot_min_y)/2.0) ;
			$this->DrawText($this->y_label_ttffont, 90,
				$xpos, $ypos, $this->ndx_label_color, $this->y_label_ttffont_size, $this->y_label_txt);
		} else { 
			$xpos = 8;
			$ypos = (($this->small_font_width*strlen($this->y_label_txt)/2.0) +
					$this->ytr(($this->plot_max_y + $this->plot_min_y)/2.0) );
			$this->DrawText($this->small_font, 90,
				$xpos, $ypos, $this->ndx_label_color, $this->y_label_ttffont_size, $this->y_label_txt);
		}
		return true;
	}

	function DrawText($which_font,$which_angle,$which_xpos,$which_ypos,$which_color,$which_size,$which_text,$which_halign='left',$which_valign='') {

		if ($this->use_ttf == 1 ) { 
			$size = $this->TTFBBoxSize($which_size, $which_angle, $which_font, $which_text); 
			if ($which_valign == 'bottom') { 
				$which_ypos = $which_ypos + ImageFontHeight($which_font);
			}
			if ($which_halign == 'center') { 
				$which_xpos = $which_xpos - $size[0]/2;
			}
			ImageTTFText($this->img, $which_size, $which_angle, 
				$which_xpos, $which_ypos, $which_color, $which_font, $which_text); 
		} else { 
			if ($which_valign == 'top') { 
				$which_ypos = $which_ypos - ImageFontHeight($which_font);
			}
			$which_text = ereg_replace("\r","",$which_text);
			$str = split("\n",$which_text); //multiple lines submitted by Remi Ricard
			$height = ImageFontHeight($which_font);
			$width = ImageFontWidth($which_font);
			if ($which_angle == 90) {  //Vertical Code Submitted by Marlin Viss
				for($i=0;$i<count($str);$i++) { 
					ImageStringUp($this->img, $which_font, ($i*$height + $which_xpos), $which_ypos, $str[$i], $which_color);
				} 
			} else {
				for($i=0;$i<count($str);$i++) { 
					if ($which_halign == 'center') { 
                    	$xpos = $which_xpos - strlen($str[$i]) * $width/2;
 						ImageString($this->img, $which_font, $xpos, ($i*$height + $which_ypos), $str[$i], $which_color);
					} else { 
						ImageString($this->img, $which_font, $which_xpos, ($i*$height + $which_ypos), $str[$i], $which_color); 
					}
				} 
			}

		} 
		return true; 

	}
	function DrawTitle() {
		if ($this->use_ttf == 1 ) { 
			$xpos = ($this->plot_area[0] + $this->plot_area_width / 2);
			$ypos = $this->y_top_margin/2;
			$this->DrawText($this->title_ttffont, $this->title_angle, 
				$xpos, $ypos, $this->ndx_title_color, $this->title_ttffont_size, $this->title_txt,'center'); 
		} else { 
			$xpos = ($this->plot_area[0] + $this->plot_area_width / 2);
			$ypos = ImageFontHeight($this->title_font); 
			$this->DrawText($this->title_font, $this->title_angle, 
				$xpos, $ypos, $this->ndx_title_color, '', $this->title_txt,'center'); 
		} 
		return true; 

	}

	function DrawPlotAreaBackground() {
		ImageFilledRectangle($this->img,$this->plot_area[0],
			$this->plot_area[1],$this->plot_area[2],$this->plot_area[3],
			$this->ndx_plot_bg_color);
	}

	function SetBackgroundColor($which_color) {
		$this->bg_color= $which_color;
		$this->ndx_bg_color= $this->SetIndexColor($which_color);
		return true;
	}
	function SetPlotBgColor($which_color) {
		$this->plot_bg_color= $which_color;
		$this->ndx_plot_bg_color= $this->SetIndexColor($which_color);
		return true;
	}

	function SetShading($which_s) { 
		$this->shading = $which_s;
		return true;
	}

	function SetTitleColor($which_color) {
		$this->title_color= $which_color;
		$this->ndx_title_color= $this->SetIndexColor($which_color);
		return true;
	}

	function SetTickColor ($which_color) {
		$this->tick_color= $which_color;
		$this->ndx_tick_color= $this->SetIndexColor($which_color);
		return true;
	}

	function SetLabelColor ($which_color) {
		$this->label_color= $which_color;
		$this->ndx_label_color= $this->SetIndexColor($which_color);
		return true;
	}

	function SetTextColor ($which_color) {
		$this->text_color= $which_color;
		$this->ndx_text_color= $this->SetIndexColor($which_color);
		return true;
	}

	function SetLightGridColor ($which_color) {
		$this->light_grid_color= $which_color;
		$this->ndx_light_grid_color= $this->SetIndexColor($which_color);
		return true;
	}

	function SetGridColor ($which_color) {
		$this->grid_color = $which_color;
		$this->ndx_grid_color= $this->SetIndexColor($which_color);
		return true;
	}

	function SetCharacterHeight() {
		//to be set
		return true;
	}

	function SetPlotType($which_pt) {
		$accepted = "bars,lines,linepoints,area,points,pie,thinbarline";
		$asked = trim($which_pt);
		if (eregi($asked, $accepted)) {
			$this->plot_type = $which_pt;
			return true;
		} else {
			$this->DrawError('$which_pt not an acceptable plot type');
			return false;
		}