X-Git-Url: http://git.kpe.io/?a=blobdiff_plain;f=cameras.lisp;fp=cameras.lisp;h=4d5821a2c44b722173da7dfe233261569bd68bef;hb=4779a391e5c45e56ea3cb2c35787354f07e6d362;hp=0000000000000000000000000000000000000000;hpb=68888264bfdedb86e9bbceee6479e938cb854a51;p=cl-photo.git

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+;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10; Package: photo -*-
+;;;; *************************************************************************
+;;;; FILE IDENTIFICATION
+;;;;
+;;;; Name:          cameras.lisp
+;;;; Purpose:       Camera-specific data for cl-photo
+;;;; Programmer:    Kevin M. Rosenberg
+;;;; Date Started:  April 2005
+;;;;
+;;;; $Id: dof.lisp 10421 2005-04-19 21:57:00Z kevin $
+;;;;
+;;;; This file, part of cl-photo, is Copyright (c) 2005 by Kevin M. Rosenberg
+;;;;
+;;;; cl-photo users are granted the rights to distribute and use this software
+;;;; as governed by the terms of the GNU General Public License v2
+;;;; (http://www.gnu.org/licenses/gpl.html)
+;;;;
+;;;; *************************************************************************
+
+(in-package #:photo)
+
+(defun sensor-dimensions-megapixels (format megapixels)
+  (let* ((dim (format-dimensions format))
+         (aspect-ratio (/ (car dim) (cdr dim)))
+         (width (round (sqrt (* aspect-ratio 1000000 megapixels)))))
+    (cons width (round (/ width aspect-ratio)))))
+
+
+(defun sensor-dimensions (sensor-spec &key (format :aps))
+  "Returns the number of pixels for a sensor. 
+CAMERA-SPEC is either a keyword designating the camera or
+the number of megapixels of the sensor.
+FORMAT should be defined if the CAMERA-SPEC is the number of megapixels
+so the proper aspect ratio is used."
+  (etypecase sensor-spec
+    (keyword
+     (ecase sensor-spec
+       ;; nikon
+       (:d2x (cons 4288 2848))
+       (:d100 (cons 3037 2024))
+       (:d2h (cons 2464 1632))
+       (:d70 (cons 3008 2000))
+
+       ;; canon
+       (:1d (cons 2464 1648))
+       (:1d2 (cons 3504 2336))
+       (:1ds (cons 4064 2704))
+       (:1ds2 (cons 4992 3328))
+
+       ))
+    (number
+     (sensor-dimensions-megapixels format sensor-spec))))
+
+
+(defun format-dimensions (format)
+  "Returns format dimensions in mm."
+  (ecase format
+    (:aps-c (cons 22.7 15.1))
+    ((:aps :dx :24x16mm) (cons 24 16))
+    ((:35mm :36x24mm) (cons 36 24))
+    (:6x4.5cm (cons 60 45))
+    ((:6x6 :6x6cm) (cons 60 60))
+    ((:6x7 :6x7cm) (cons 60 70))
+    ((:6x9 :6x9cm) (cons 60 90))
+    ((:4x5 :4x5in) (cons (* 4 +inches->mm+) (* 5 +inches->mm+)))
+    ((:5x7 :5x7in) (cons (* 5 +inches->mm+) (* 7 +inches->mm+)))
+    ((:8x10 :8x10in) (cons (* 8 +inches->mm+) (* 10 +inches->mm+))) 
+    (:11x13.75in (cons (* 11 +inches->mm+) (* 13.75 +inches->mm+)))
+    (:11x16.5in (cons (* 11 +inches->mm+) (* 16.5 +inches->mm+)))
+    (:13x19in (cons (* 13 +inches->mm+) (* 19 +inches->mm+)))
+    (:16x20in (cons (* 13 +inches->mm+) (* 19 +inches->mm+)))
+    (:16x24in (cons (* 13 +inches->mm+) (* 19 +inches->mm+)))
+    (:18x22.5in (cons (* 13 +inches->mm+) (* 19 +inches->mm+)))
+    (:18x24in (cons (* 13 +inches->mm+) (* 19 +inches->mm+)))
+    (:24x30in (cons (* 13 +inches->mm+) (* 19 +inches->mm+)))
+    (:24x36in (cons (* 13 +inches->mm+) (* 19 +inches->mm+)))
+    ))